WO2007140215A2 - Couvercle à membrane avec languette encastrée, et contenant comprenant ce couvercle - Google Patents

Couvercle à membrane avec languette encastrée, et contenant comprenant ce couvercle Download PDF

Info

Publication number
WO2007140215A2
WO2007140215A2 PCT/US2007/069557 US2007069557W WO2007140215A2 WO 2007140215 A2 WO2007140215 A2 WO 2007140215A2 US 2007069557 W US2007069557 W US 2007069557W WO 2007140215 A2 WO2007140215 A2 WO 2007140215A2
Authority
WO
WIPO (PCT)
Prior art keywords
tab
membrane lid
disk portion
container
lid
Prior art date
Application number
PCT/US2007/069557
Other languages
English (en)
Other versions
WO2007140215A3 (fr
Inventor
Alan Richards
Original Assignee
Sonoco Development, Inc.
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 Sonoco Development, Inc. filed Critical Sonoco Development, Inc.
Publication of WO2007140215A2 publication Critical patent/WO2007140215A2/fr
Publication of WO2007140215A3 publication Critical patent/WO2007140215A3/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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/501—Flexible tape or foil-like material
    • B65D17/502—Flexible tape or foil-like material applied to the external part of the container wall only
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/001—Action for opening container
    • B65D2517/0013—Action for opening container pull-out tear panel, e.g. by means of a tear-tab
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5013—Details of flexible tape or foil-like material the tape covering almost the whole of the container end panel
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2041—Pull tabs
    • B65D2577/205—Pull tabs integral with the closure

Definitions

  • the invention relates to containers having a metal ring affixed to the top end of the container so as to define an annular surface that encircles the top opening of the container and to which a flexible membrane closure or lid is sealed to initially seal the container.
  • a flexible membrane closure or lid is sealed to initially seal the container.
  • Such membrane lids often have a tab that can be grasped and pulled to facilitate peeling the membrane lid from the metal ring.
  • the tabs on such membrane lids represent potential difficulties during handling of the membrane lids by automated machinery.
  • the tabs may initially lie flat against the upper surface of the membrane lids, but handling can cause the tabs inadvertently to be lifted and consequently the tabs can get caught in the machinery and cause a jam or can get torn off.
  • the present invention addresses this problem by providing a membrane lid having a recessed ring pull tab.
  • the membrane lid comprises a permanently deformable layer (e.g., metal foil or thin sheet metal) having a disk portion and a tab projecting from the outer periphery of the disk portion.
  • the tab is folded back onto the upper surface of the disk portion.
  • a region of the disk portion underlying the folded-back tab defines a depression and the tab is folded back such that it is recessed within the depression.
  • a sealing material is provided on the lower surface of the membrane lid for sealing the lid to a metal ring of a container.
  • the membrane lid in one embodiment comprises a deformable layer of metal, and a sealant layer joined to a lower surface of the disk portion of the deformable layer.
  • AttyDktNo: 031599/320835 does not have the sealant layer.
  • the disk portion and the tab comprise a single piece of metal, being formed by a process of die-cutting (or similar process) from a sheet of metal.
  • an outer edge of the tab is rolled to provide a cut-resistant outer edge.
  • the tab advantageously is ring-shaped, defining a finger hole therethrough.
  • An inner edge of the hole in the tab is also rolled to provide a cut- resistant inner edge.
  • the disk portion of the lid can have a non-smooth (e.g., dimpled, pebbled, or waffled) configuration, if desired or necessary in a particular application.
  • the disk portion can be smooth.
  • a container in accordance with one embodiment of the invention comprises a container body having a side wall that terminates in a top edge circumscribing an opening of the container body.
  • a metal ring is seamed to the top edge of the container body.
  • the metal ring includes an annular portion that extends radially inwardly from the container body and defines an upper surface.
  • the metal ring has an inner edge circumscribing an aperture through the metal ring for access to the interior of the container body.
  • a membrane lid is sealed to the upper surface of the metal ring.
  • the membrane lid has a configuration as described above, including a depression and a tab folded back into the depression.
  • FIG. 1 is a perspective view of a container in accordance with one embodiment of the invention.
  • FIG. 2 is a view similar to FIG. 1, showing the membrane lid being peeled away from the metal ring;
  • FIG. 3 is a top elevation of a metal ring and membrane lid assembly in accordance with one embodiment of the invention, for attachment to a container;
  • FIG. 4 is a magnified top elevation of the tab region of the membrane lid.
  • FIG. 5 is a cross-sectional view through the metal ring and membrane lid assembly.
  • FIGS. 1 and 2 A container 10 in accordance with one embodiment of the invention is shown in FIGS. 1 and 2.
  • the container comprises a container body 12 having a side wall 14 that encircles the interior space in the container body.
  • the side wall extends upwardly and terminates in a top edge 16 that circumscribes a top opening of the container body.
  • Affixed to the top edge 16 of the container body is a metal ring 20.
  • the metal ring can be affixed by double-seaming, wherein an outer curled region 22 of the metal ring is rolled outwardly along with a flange formed on the top edge of the container body. Double-seaming processes are well known and hence do not require detailed description herein.
  • the metal ring includes an annular portion 24 that is generally planar and extends radially inwardly from the curled region 22. The annular portion defines an upper surface to which a membrane lid 30 is sealed.
  • FIGS. 3 through 5 show the assembly of the metal ring 20 and membrane lid 30 in greater detail.
  • the inner edge 26 of the metal ring is curled or rolled under to reduce the likelihood of a person cutting himself or herself on the edge when inserting a hand into the container, such as to scoop out a quantity of powdered or granular product.
  • the metal ring 20 can comprise steel such as tin-plated steel. The steel can be either coated or uncoated.
  • the membrane Hd 30 comprises a disk portion 32 and a tab 34.
  • the term "disk portion” as used herein is not limited to circular shapes, but also includes other shapes such as polygonal, elliptical, oval, and the like.
  • the disk portion is sized larger than the aperture defined by the inner edge 26 of the metal ring such that an outer peripheral area of the disk portion overlaps the annular portion 22 of the ring. This outer peripheral area is sealed to the annular portion of the ring to initially seal the contents within the container.
  • a separate plastic overcap 28 (FIG. 1) is typically supplied for reclosing the container after the initial opening.
  • the lid includes the tab 34, which can be grasped and pulled as shown in FIG. 2.
  • the tab 34 is attached to the outer edge of the disk portion 32.
  • the membrane lid as manufactured and sealed to the metal ring 20 has the tab 34 folded back onto the upper surface of the disk portion 32 so that the tab lies flat against the disk portion. This is done to keep the tab in a position that will not interfere with handling of the lid by automated sealing machinery that seals the lid to the metal ring.
  • the tab advantageously is ring-shaped, having a finger hole 36 through which a finger can be slipped to facilitate grasping and pulling the tab, as shown in FIG. 2.
  • the disk portion 32 of the membrane Hd has a localized depression 40 created by deforming the disk portion from its otherwise generally flat configuration.
  • the depression 40 is located beneath the folded-back tab 34 and is sized in length, width, and depth to be able to receive the tab so that the tab is recessed within the depression.
  • the tab is recessed in the depression 40 so that the tab does not project above the upper surface of the disk portion 32 outside the depression. This substantially reduces the likelihood of the tab being inadvertently lifted from its folded-back position prior to or during automated sealing. Prematurely lifted tabs can get jammed in the automated machinery or can get torn off by the machinery, making it much more difficult for the consumer to peel off the membrane lid, or causing the metal ring and membrane Hd assembly to be rejected and have to be scrapped.
  • the membrane Hd comprises a permanently (i.e., plastically) deformable structure. More particularly, in preferred embodiments of the invention, the membrane lid includes a deformable layer of metal such as aluminum or the like.
  • the deformable layer can comprise a metal foil or thin sheet metal.
  • the metal layer in some embodiments of the invention can have a thickness of about 0.045 mm to about 0.120 mm (about 45 to 120 microns), and more
  • AttyDktNo: 031599/320835 preferably about 0.060 to about 0.090 mm (about 60 to 90 microns).
  • the depression 40 is formed by plastically deforming the metal layer with suitable tooling.
  • the membrane lid 30 includes a sealing material 38 (FIG. 2) on its lower surface for sealing the lid to the metal ring 20.
  • the sealing material can comprise a heat-sealable material.
  • Various heat-sealable materials are known and can be used.
  • suitable heat-sealable materials include heat-sealable lacquers (e.g., based on vinyl chloride, vinyl acetate, or copolymers thereof), polypropylene, polyethylene, polyamide, ethylene vinyl acetate, ethyl methacrylate, ionomer resins, epoxy resins, and blends thereof.
  • the membrane lid 30 can include a protective coating on the upper surface of the metal layer.
  • the protective coating may be useful for preventing the lid from sticking to the automated sealing tooling used for heat-sealing the lid to the metal ring.
  • a polyester coating can be applied to the upper surface of the metal layer.
  • the Hd 30 has three layers: the deformable metal layer of aluminum, a polyester coating on the upper surface of the metal layer, and a coating 38 (FIG. 2) of vinyl chloride/vinyl acetate copolymer on the lower surface of the metal layer.
  • the lid 30 can be manufactured from a sheet of the coated metal by die-cutting a blank from the sheet, then deforming the blank to form the depression 40, then folding the tab 34 back into the depression.
  • the blank has the disk portion 32 and the tab 34 projecting radially outwardly from the disk portion, as a one-piece integral structure.
  • the tab can be further processed by suitable tooling to roll the outer edge of the tab and to roll the inner edge of the finger hole 36 so as to form cut-resistant edges that are less likely to cut a consumer's finger. Once the tab is fully formed, it is folded back into the depression 40.
  • the lid 30 can also include embossments (schematically indicated at 42) such as dimples or a waffle pattern for stiffening the lid.
  • embossments are formed by suitable tooling after the blank has been die-cut from the metal sheet material.
  • the region of the depression 40 preferably does not have embossments.
  • the outer peripheral area of the lid that is sealed to the metal ring preferably does not include embossments.

Landscapes

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

Abstract

L'invention concerne un couvercle à membrane possédant un anneau de préhension encastré. Ce couvercle à membrane comprend une couche à déformation permanente (une feuille métallique ou une tôle, par exemple) comportant une partie en forme de disque et une languette formant un élément saillant à partir du bord extérieur de la partie en forme de disque. La languette est repliée sur la surface supérieure de la partie en forme de disque. Une région de la partie en forme de disque, située sous la languette repliée, forme une dépression, la languette étant repliée de manière à être logée dans cette dépression. Un matériau d'étanchéité situé sur la surface inférieure du couvercle à membrane permet de fixer le couvercle à un anneau métallique d'un contenant.
PCT/US2007/069557 2006-05-26 2007-05-23 Couvercle à membrane avec languette encastrée, et contenant comprenant ce couvercle WO2007140215A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/420,595 2006-05-26
US11/420,595 US20070272693A1 (en) 2006-05-26 2006-05-26 Membrane Lid with Recessed Tab, and Container Incorporating Same

Publications (2)

Publication Number Publication Date
WO2007140215A2 true WO2007140215A2 (fr) 2007-12-06
WO2007140215A3 WO2007140215A3 (fr) 2008-02-21

Family

ID=38621717

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/069557 WO2007140215A2 (fr) 2006-05-26 2007-05-23 Couvercle à membrane avec languette encastrée, et contenant comprenant ce couvercle

Country Status (2)

Country Link
US (1) US20070272693A1 (fr)
WO (1) WO2007140215A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
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CN102837866A (zh) * 2012-08-08 2012-12-26 孚迪斯石油化工（葫芦岛）有限公司 一种润滑油包装容器

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US7703625B2 (en) * 2006-11-15 2010-04-27 Sonoco Development, Inc. Container lid formed as a laminate having a built-in opening feature, container incorporating same, and method for making same
EP2100818A1 (fr) * 2008-03-13 2009-09-16 Rainer Naroska engineering GmbH Emballage scellé pouvant être déchiré
US20120043324A1 (en) * 2010-08-18 2012-02-23 Silgan Containers Llc Container with Reduced, Peel-Off-Force Tear Configuration
BR112013012694A2 (pt) * 2010-11-29 2016-09-06 Crown Packaging Technology Inc "fechamento"
US9023445B2 (en) 2011-10-14 2015-05-05 Kellogg North America Company Composite containers for storing perishable products
US8991634B2 (en) 2013-05-13 2015-03-31 Owens-Brockway Glass Container Inc. Seal ring for sealing a container
US9611082B2 (en) 2013-05-13 2017-04-04 Owens-Brockway Glass Container Inc. Seal ring for foil-sealing a container
USD857443S1 (en) * 2016-09-13 2019-08-27 Pacific Market International, Llc Beverage container lid
CN109592176A (zh) * 2017-09-30 2019-04-09 盛宇Eoe科技股份有限公司 具备防受伤功能的易拉罐组件
CN210734995U (zh) * 2018-08-27 2020-06-12 济托赛文公司 粉末容器的密封盖
GB2588815B (en) * 2019-11-08 2021-12-15 Crown Packaging Technology Inc Metal container and metal closure thereof
CN111301853B (zh) * 2020-04-09 2021-12-24 广东中瑞制罐有限公司 用于倒出颗粒物料的盖体、包装物和颗粒物料容器

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EP0357276A1 (fr) * 1988-09-02 1990-03-07 General Foods Corporation Produit emballé sous vide et procédé utilisant une membrane comme fermeture d'extrémité
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FR2673911A1 (fr) * 1991-03-12 1992-09-18 Cmb Packaging Sa Emballage avec opercule.
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DE8519750U1 (de) * 1985-07-08 1985-09-26 Alcan Ohler GmbH, 5970 Plettenberg Foliendeckel aus Metallfolie
US4738374A (en) * 1985-08-16 1988-04-19 Ole Ingemann Container
EP0357276A1 (fr) * 1988-09-02 1990-03-07 General Foods Corporation Produit emballé sous vide et procédé utilisant une membrane comme fermeture d'extrémité
FR2673911A1 (fr) * 1991-03-12 1992-09-18 Cmb Packaging Sa Emballage avec opercule.
DE9203953U1 (fr) * 1992-03-24 1992-07-23 Alcan Rorschach Ag, Rorschach, Ch
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CN102837866A (zh) * 2012-08-08 2012-12-26 孚迪斯石油化工（葫芦岛）有限公司 一种润滑油包装容器

Also Published As

Publication number Publication date
WO2007140215A3 (fr) 2008-02-21
US20070272693A1 (en) 2007-11-29

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