WO2009050165A1 - Fermeture à couvercle déformable - Google Patents

Fermeture à couvercle déformable Download PDF

Info

Publication number
WO2009050165A1
WO2009050165A1 PCT/EP2008/063798 EP2008063798W WO2009050165A1 WO 2009050165 A1 WO2009050165 A1 WO 2009050165A1 EP 2008063798 W EP2008063798 W EP 2008063798W WO 2009050165 A1 WO2009050165 A1 WO 2009050165A1
Authority
WO
WIPO (PCT)
Prior art keywords
closure
lid
neck
opening
hinge
Prior art date
Application number
PCT/EP2008/063798
Other languages
English (en)
Inventor
Rodney Druitt
Original Assignee
Creanova Universal Closures 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
Application filed by Creanova Universal Closures Ltd. filed Critical Creanova Universal Closures Ltd.
Publication of WO2009050165A1 publication Critical patent/WO2009050165A1/fr

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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/16—Non-removable lids or covers hinged for upward or downward movement
    • B65D43/161—Non-removable lids or covers hinged for upward or downward movement comprising two or more cover sections hinged one to another
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/16—Non-removable lids or covers hinged for upward or downward movement
    • B65D43/163—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately
    • B65D43/169—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately the lid, the hinge and the element connecting them to the container being made of one piece
    • 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
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
    • B65D51/1688—Venting occurring during initial closing or opening of the container, by means of a passage for the escape of gas between the closure and the lip of the container mouth, e.g. interrupted threads

Definitions

  • the present invention relates to a closure for a drink package, especially for a drink package for carbonated beverages.
  • Closures which need to be assembled out of several parts are normally more expensive than closures which are made in a single mold or by multi-component injection molding.
  • Hinged closures which need to be capable to withstand internal pressure need a strong hinge connection to avoid uncontrolled throwing of the lid.
  • WO07031 585A1 assigned to Creanova Universal Closures Ltd. discloses a hinged closure molded in a closed position.
  • the closure has a ring-shaped base.
  • a lid is interconnected to the base by a hinge arrangement integrated in the outer cylindrical surface of the closure.
  • a latching mechanism arranged inside the closure holds the closure in position with respect to a neck of a drink package and thereby prevents unwanted opening.
  • WO05007526 assigned to Creanova AC is directed to a closure molded in a closed position.
  • the closure comprises a body and a lid which are separated to each other by a circumferen- tial gap.
  • a snap hinge comprising two trapezoid elements interconnected each by film hinges to the body and the lid causes a snap action while opening or closing the closure.
  • the closure offers opening angles in a range of up to 220 degrees .
  • US2004256347 assigned to Owens Illinois is directed to a closed molded closure that is suitable to be fastened to a container opening.
  • a closure top with a skirt is hingedly con- nected to a lower support ring that is engageable with the end portion of the container.
  • a sealing rib has a first and a second portion which is folded inwardly. The closure does not provide any means to securely lock the lid with respect to the container opening. Thereby the closure is not suitable for carbonated beverages.
  • US2001032827 assigned to The Coco-Cola Company discloses a two stage dispensing cap for a container for carbonated beverage.
  • the cap is assembled of several parts and has a flip top which is hingedly connected to a collar wherein the collar is rotatable on the container.
  • the cap upon rotation of the collar, is first opened into a venting position wherein the flip top vents the pressurized contents of the container but remains locked partially closed.
  • a set of cams on the container neck work in conjunction with annular beads to first allow partially opening of the flip top into the venting position and then allowing it to fully open.
  • US61 52320 is assigned to Crown Cork and Seal Tech Corp. and discloses a flip-top type closure which is molded in an open position.
  • the closure comprises a body and a lid which are connected to each other by a first snap hinge and a second dead hinge (no snap effect).
  • the first and the second hinge are arranged in a series to each other and it becomes not clear how the movement of these two hinge shall be coordinated during opening and closing. It can be retrieved from the specification that the lid is rotatable about the two hinges so that a spout of the body may be inserted into the mouth without interference by the cap portion.
  • the spout is arranged laterally spaced a part from the first and the second hinge and functionally separated from each other.
  • US4503991 a closure with a body and a lid.
  • the lid is interconnected by a first hinge to the body and is only for single use during making of the closure. It looses its functionality after the lid of the closure is brought into an operating position where it is.
  • the lid comprises a second hinge which allows that after locking part of the lid can still be opened and closed.
  • EP091 1 273 is assigned to Plastics Inc. and relates to a screw-top/flip-top lid assembly for use in dry storage applications.
  • the closure is not sufficiently tight for liquids and is therefore not suitable for drink packages.
  • the lid assembly is configured for attaching to a con- tainer having a threaded container opening.
  • the lid assembly includes a screw cap that is pivotally coupled to a flip cap by a hinge.
  • the screw cap includes a co-molded gasket generally disposed along the periphery of the screw cap opening.
  • the closure is not suitable for drink packages for carbonated beverages.
  • One object of the present invention is to provide a hinged closure which allows venting of compressed gas from the inside of a drink package in a controlled manner.
  • the invention is in general directed to a closure with a closure lid functionally intercon- nected to a closure base by a hinge connection, preferably a snap hinge connection.
  • a hinge connection preferably a snap hinge connection.
  • Good results are obtained by a hinge connection molded in closed position as described in WO/2005/007526 or WO/2007/031585, herein incorporated by reference.
  • These hinges allow a large opening angle.
  • other hinge constructions may be appropriate.
  • the lid of the closure normally comprises a sealing means which in a closed position is in functional interaction with a neck rim of a pouring opening of a drink package.
  • the closure is equipped by a sealing liner in form of a sealing disc.
  • the sealing means corresponds to a one or multi-component sealing means as described in WO/2006/ 1 17024, herein incorporated by reference. However, depending on the field of application other sealing means may be appropriate.
  • the lid of a closure in general comprises an outer shell consisting of a circular disc which extends into a cylindrical or conical skirt (depending on the design, other shapes may be appropriate) surrounding in a closed position the upper end of a neck of a drink package.
  • a sealing means is arranged inside the lid which sealingly closes the pouring opening of the drink package, in that it is pressed against a surface of the pouring opening or adjacent to it.
  • the sealing means can have an annular three-dimensional shape protruding in axial direction from the circular disc having a P-shaped cross-section.
  • the lid is interconnected to an annular closure base via a hinge connection as described above.
  • the annular closure base In a mounted position the annular closure base is arranged around the bottle neck where it is securely held by appropriate holding means, e.g. in the form of circumferential rims.
  • the closure base acts as support for the closure lid interconnected to the closure base by the hinge connection.
  • a closure as described herein is normally made by injection molding of thermoplastic plastic material such as polypropylene (PP) or polyethylene (PE) into a cavity of an injection mold.
  • a sealing liner can be made in different ways, e.g. in that it is separately out of a liner material and then inserted into the lid. Alternatively, the sealing liner is formed by multi- component injection molding of a liner material in the same or a different mold or by com- pression molding. Softer material such as Low density PE (LDPE), ethylene vinyl acetate (EVA), compounds based on polyolefinic raw materials or EVM-based materials such as Darex are often used as liner material.
  • LDPE Low density PE
  • EVA ethylene vinyl acetate
  • the closure can be equipped by a barrier liner, e.g. arranged between an outer shell of the lid and the sealing liner or incorporated in the outer shell of the lid.
  • the lid is designed deformable in a controlled manner.
  • a deformation is initiated by the opening force applied to the closure allowing gas to escape from the inside of the package in a controlled manner before the closure is fully opened, respectively the hinge starts to act.
  • the deformation causes a local distortion of the sealing means, e.g. by partial lift-off (disengaging) of the sealing means from the sealing surface of the neck.
  • the lid and the neck finish are designed so that in a closed position of the closure - before initial opening - the deformation of the lid cannot take place and is blocked respectively.
  • tamper evidence means which interconnect the lid with the closure base and which prevent the local distortion necessary to allow venting.
  • the tamper evidence means must be removed or destroyed automatically during initial opening.
  • the tamper evidence means can be implemented in the form of one or more bridges, thin webs of material and/or tear-off elements which have to be removed manually.
  • the closure and the neck of the bottle can be equipped with thread segments by which the lid interacts with the neck.
  • the closure can be designed, such that local distortion only occurs after the closure is brought into a special position with respect to the neck of the bottle, e.g. in that the closure is rotated first.
  • the lid may comprise one or more structural attenuations.
  • the at least one structural attenuation is normally arranged between an opening tab by which the lid of the closure can be opened and the hinge interconnecting the lid and the closure base.
  • the structural attenuation can, e.g., be implemented in the form of slits, thin areas or week spots arranged at the closure skirt on both sides of the lid opposite to each other at an angle of 90° with respect to the hinge and an opening tab opposite thereto.
  • other locations can be appropriate, e.g. at the front or the rear of the closure lid or in an area where operating forces are applied by a user such as the opening tab at the front of the closure.
  • the principle idea can, among others, be implemented in a hinged closure which need to be turned for opening or it can be implemented in a closure which allows opening without turning.
  • the closure lid is designed such that it deforms when a user applies an opening force to the front of the lid, e.g. opposite to the hinge. Therefore, the lid laterally comprises weak areas which allow that the sealing means is partially disengaged from the bottle neck in the front area before the hinge starts to move and the closure is fully opened.
  • the weak areas can be designed as one or several slits arranged in the skirt of the lid extending into the top disc, if appropriate. To ease the deformation, the slits can be designed as stress concentrators causing a controlled rupture of the lid in a foreseen manner.
  • the deformation of the lid can be supported by thinned weak plastic sections, bridges or thin web of material, which, e.g., extends across the top disc of the lid or an opening.
  • the closure can be equipped with reinforcing means.
  • the lid can be equipped with a thin stripe of a reinforcing material, e.g. a stripe of metal having a thickness of approx. 0.1 to 0.3 mm (other dimensions might be appropriate depending on the field of application) which is arranged inside the lid.
  • the slits can be initially closed, e.g. by a thin web of material to avoid contamination of the inside of the closure.
  • the weak area can also be obtained, e.g. by a bellow-like design allowing local distortion.
  • the stripe of metal can be made of aluminium or another appropriate material. If necessary, the stripe of metal can be scored to concentrate deformation in a predetermined manner.
  • the closure is determined to sealingly close a neck of a bottle.
  • the closure comprises a closure lid and a closure base functionally interconnected to each other by a hinge connection.
  • the closure lid comprises a sealing means which in a closed position of the closure, when mounted on the neck of the bottle, sealingly engages with the neck of the bottle.
  • the lid has a deformable design so that while opening the closure lid, the closure lid deforms in a predetermined manner in order that the sealing means partially disengages from the neck. Thereby the compressed gas arranged inside the bottle can vent.
  • the deformable design of the closure can be achieved by a structural attenuation. Good results are achieved when the structural attenuation is arranged between the hinge and an opening tab of the lid.
  • the structural attenuation can be one or more slits, e.g. arranged at a skirt of the lid of the closure. If appropriate, the slit can extend into the top deck of the closure forming a week spot.
  • the deformation can be influenced by frangible elements arranged adjacent to the structural attenuation causing the lid to deform in a determined manner.
  • the closure lid can be equipped with a structural reinforcing means, e.g. in form of a metal stripe. If appropriate, the metal stripe can be scored to determine its bending characteristic.
  • the sealing means can be a sealing disc made out of liner material.
  • Fig. 1 A first embodiment of a closure in a perspective manner
  • FIG. 2 The closure according to Fig. 1 in a front view
  • FIG. 3 The closure according to Fig. 1 in a back view
  • Fig. 4 The closure according to Fig. 1 in a side view
  • Fig. 6 The closure according to Fig. 1 in a partially open position in a side view
  • Fig. 7 The closure according to Fig. 6 in a front view
  • Fig. 8 The closure according to Fig. 6 in a perspective view from above;
  • Fig. 9 A section view along line BB of the closure according to Fig. 7. DESCRIPTION OF THE EMBODIMENTS
  • Figure 1 shows a first embodiment of a closure 1 in a perspective view from above.
  • Figure 2 shows the same closure 1 in a top view, Figure 3 in a front view and Figure 4 in a side view.
  • Figure 5 shows detail A of Figure 4 in a magnified manner.
  • the closure 1 is shown arranged on a neck finish 2.
  • a closure lid 3 with a cylindrical top disc 4 and a here cylindrical skirt 5 is functionally interconnected via a snap hinge 6 with an annular closure base 7.
  • the snap hinge 6 comprises here a first and a second trapezoid element 8.1 , 8.2 which are interconnected to the closure parts 3, 7 by film hinges 9. Due to the design of the snap hinge 6 the closure lid 3 and the closure base 7 are not directly con- nected by a single direct hinge connection as it is known from other closures.
  • the lid 3 and the base 7 are in general arranged concentric relative to a central axis X and with respect to each other and spaced apart by a circumferential gap 10.
  • frangible elements (bridges) 1 1 are present which interconnect the closure 1 before initial opening.
  • bridges 1 1 it would also be possible to provide a thin web of material or a tear-off element (not shown in detail) that are destroyed or have to be removed during initial opening.
  • the frangible elements 1 1 indicate whether a closure was initially opened or not. In the shown closure the frangible elements 1 1 also help to hold the closure in its closed position when the inside of the package 2 is under pressure.
  • a lifting (opening) tab 1 2 is arranged which allows to open the lid 3 of the closure 1 more easily.
  • the skirt 5 of the closure 1 is equipped with two opposite here in general V-shaped slits 1 3 which are arranged vertically extending from the gap 1 0 in the direction of the top disc 4 of the lid 3.
  • the slits 1 2 act as a soft spot allowing the closure lid 3 to deform in a predetermined manner during the initial opening of the closure 1 in that the front of the closure lid 3 partially lifts-up and disengages a sealing means 16 (see section view of Figure 9) arranged inside the lid 3.
  • a closure 1 comprises a frangible element 1 1 arranged close by the slit 1 3 on the hinge side (rear side) of the lid interconnecting the rear side of the lid 3.
  • the frangible element has here the shape a frustum of a pyramid.
  • the frangible element prevents the rear part of the lid 3 to lift. Thereby only the front part of the lid opens in a controlled manner allowing gas to escape until the pressure inside the bottle 2 is at ambient level.
  • no frangible elements are arranged adjacent to the slit 13.
  • frangible elements (not shown here) on the front side of the lid 3 adjacent to the slit 1 3. It is thereby achieved that during the initial opening, when a force F is applied to the opening tab 1 3, the lid 3 starts to hinge around the frangible element up to a certain angle and the frangible element breaks. During this action the rear part of the lid is pressed on the neck finish in an increased manner. During this first stage of an opening procedure the sealing element 16 is disengaged in the area of the lifting tab and the gas can escape from the inside of the package 2.
  • the closure 1 can be equipped with means which coordinate the opening movement of the lid 3 and determine when the hinge 6 starts to act. E.g.
  • FIG. 6 shows the closure according to Figure 1 in a side view with a partially lift-up (deformed) lid 3 as described above.
  • Figure 7 shows the same closure 1 in a front view and Figure 8 in a perspective view.
  • Figure 9 shows a section view through the closure 1 according to Figure 6 along section line BB.
  • the frangible elements 1 1 next to the lifting tab 12 are broken and the front part 1 7 of the lid 3 starts to hinge around a hinge line 14 (schematically indicated).
  • the sealing means 1 6 arranged inside the lid 3 disengages from the neck 2 allowing compressed gas to vent from the inside of the package 2 before the lid is fully open.
  • This is schemati- cally indicated by arrow P.
  • the lid of the closure can comprise one or more structural reinforcements, e.g. in the form of a stripe 1 5 durable material, e.g. metal such as aluminium or another appropriate material.
  • the reinforcement 1 5 is arranged embedded between the outer shell of the lid 3 and the sealing means 16. It can extend along the top disc 5 only or extend at least partially down along the skirt 5 of the lid 3.
  • frangible element 1 1 is arranged adjacent to the structural attenuation 1 3.
  • This frangible element causes the rear part 18 of the lid to remain in position when the front part of the lid 1 7 starts to move. After a certain extent the forces applied to the front part 17 of the lid 3 cause the remaining frangible ele- ments 1 1 to break and the back part 18 of the lid 3 starts to open guided by the hinge 6 (not shown in detail).
  • the position of the frangible elements - if necessary at all - is shown only in an exemplary manner and may vary in design and position depending on the closure. E.g.
  • frangible element 1 1 adjacent to the slid 13 on the front side 18 of the lid 3 thereby causing the front side 18 of the lid 3 in a slightly different manner. This results in a different distribution of the forces and the moments applied, so that the frangible elements break in a different manner and order.
  • frangible elements break in a different manner and order.
  • closure base 7 is held in position on the neck 2 by in- teraction of first and second circumferential beads 1 9, 20 arranged at the outside of the neck 2 and at the inside of the annular closure base 7.
  • fixation means such as thread segments (not visible).
  • the lid 3 is held in closed position by first and second interlocking elements 21 , 22 arranged at the inside of the lid and at the outside of the neck 2 before the initial opening.
  • the interlocking elements 21 , 22 are in the form of circumferential beads. Alternatively, it would be possible to use other means such as interacting thread segments or a bayonet-type of locking means (not shown in detail).
  • the closure is held in closed position by the frangible elements 1 1 which at the same time indicate the initial opening of the closure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne une fermeture destinée à fermer de façon étanche le col d'une bouteille. La fermeture comporte un couvercle de fermeture et une base de fermeture couplés de façon fonctionnelle par une liaison articulée. Le couvercle de fermeture comprend des moyens d'étanchéité qui, lorsque le couvercle est fermé, s'engagent de façon étanche sur le col de la bouteille. Le couvercle est déformable et se déforme de façon prédéterminée pour permettre l'échappement de gaz comprimé présent dans la bouteille avant sont ouverture complète.
PCT/EP2008/063798 2007-10-17 2008-10-14 Fermeture à couvercle déformable WO2009050165A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US98066607P 2007-10-17 2007-10-17
US60/980,666 2007-10-17

Publications (1)

Publication Number Publication Date
WO2009050165A1 true WO2009050165A1 (fr) 2009-04-23

Family

ID=40263349

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/063798 WO2009050165A1 (fr) 2007-10-17 2008-10-14 Fermeture à couvercle déformable

Country Status (1)

Country Link
WO (1) WO2009050165A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2923965B1 (fr) 2014-03-25 2016-06-15 S.A. Vichy Catalàn Dispositif de protection pour récipients

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503991A (en) * 1984-01-06 1985-03-12 Michael Joyce Two part snap hinge
GB2198422A (en) * 1986-11-17 1988-06-15 Wicanders Closures Ag Tear-off container closure
EP1621475A1 (fr) * 2004-07-29 2006-02-01 Sven-Ake Magnusson Fermeture pour un récipient, en particulier une bouteille
WO2006055433A2 (fr) * 2004-11-19 2006-05-26 Seaquist Closures Foreign, Inc. Systeme de fermeture comprenant un ou plusieurs couvercles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503991A (en) * 1984-01-06 1985-03-12 Michael Joyce Two part snap hinge
GB2198422A (en) * 1986-11-17 1988-06-15 Wicanders Closures Ag Tear-off container closure
EP1621475A1 (fr) * 2004-07-29 2006-02-01 Sven-Ake Magnusson Fermeture pour un récipient, en particulier une bouteille
WO2006055433A2 (fr) * 2004-11-19 2006-05-26 Seaquist Closures Foreign, Inc. Systeme de fermeture comprenant un ou plusieurs couvercles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2923965B1 (fr) 2014-03-25 2016-06-15 S.A. Vichy Catalàn Dispositif de protection pour récipients

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