EP0564755B1 - Container closure with tear-off seal - Google Patents

Container closure with tear-off seal Download PDF

Info

Publication number
EP0564755B1
EP0564755B1 EP92850080A EP92850080A EP0564755B1 EP 0564755 B1 EP0564755 B1 EP 0564755B1 EP 92850080 A EP92850080 A EP 92850080A EP 92850080 A EP92850080 A EP 92850080A EP 0564755 B1 EP0564755 B1 EP 0564755B1
Authority
EP
European Patent Office
Prior art keywords
container
closure
end portion
retaining
sealing element
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.)
Expired - Lifetime
Application number
EP92850080A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0564755A1 (en
Inventor
Sven Sondal
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.)
DUMA AB
Original Assignee
DUMA AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8212223&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0564755(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by DUMA AB filed Critical DUMA AB
Priority to EP92850080A priority Critical patent/EP0564755B1/en
Priority to DE69213211T priority patent/DE69213211T2/de
Priority to DK92850080.0T priority patent/DK0564755T3/da
Priority to AT92850080T priority patent/ATE141884T1/de
Priority to TW081105094A priority patent/TW206950B/zh
Priority to MX9302020A priority patent/MX9302020A/es
Priority to AU36806/93A priority patent/AU665411B2/en
Priority to BR9301488A priority patent/BR9301488A/pt
Priority to ZA932517A priority patent/ZA932517B/xx
Priority to CN93105482A priority patent/CN1038924C/zh
Publication of EP0564755A1 publication Critical patent/EP0564755A1/en
Publication of EP0564755B1 publication Critical patent/EP0564755B1/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/46—Snap-on caps or cap-like covers
    • B65D41/48—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
    • B65D41/485—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics with integral internal sealing means
    • 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
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/325—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings with integral internal sealing means
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/25—Non-metallic tear-off strips

Definitions

  • the invention relates to a sealed closure for containers according to the preamble of claim 1 and to a process for manufacture of a container having such closure.
  • a closure made of resilient plastic material is known from EP-A2- 0 320 475.
  • the known closure is intended for use with, at its neck portion, a rotationally symmetric container filled with its contents, for example, a plastic container filled with a pharmaceutical composition in form of tablets.
  • a rotationally symmetric container filled with its contents for example, a plastic container filled with a pharmaceutical composition in form of tablets.
  • the lid portion at its circumference is connected to a retaining ring by a thinner strip of plastic material functioning like a hinge, allowing the container lid to be opened and closed after removal of a sealing strip extending in an unbroken state between the lid portion and the retaining portion along part of the circumference of the container.
  • the sealing strip is provided with a gripping tab arranged at and integral with one end portion of the sealing strip.
  • the gripping tab has to be fastened to the sealing strip by welding, this requiring a separate production step and thus entailing extra cost.
  • the finished closures have to be sorted and transported to the site where they are put onto the containers, and the containers have to be sorted, labelled and packed.
  • the relatively bulky gripping tags extending beyond the circumference of the containers sometimes become entangled. This necessitates human interference in an otherwise automatized production line and adds further cost.
  • FR-A-1 422 230 discloses a sealed closure for containers made of resilient flexible plastic material.
  • the closure comprises a retaining portion for retaining the closure on the container, a lid portion connected to the retaining portion, and a tear-off sealing element connecting the retaining portion and the lid portion in an initial sealed state and provided at its one end portion with gripping means to facilitate removal of the sealing element through tearing-off.
  • Prior to its mounting on the container the closure lacks gripping means extending peripherally therefrom.Such gripping means are produced by the action of the container on the closure when the closure is being mounted onto the container.
  • the gripping means comprise one end portion of the tear-off sealing element, which end portion in an unmounted state of the closure extends along the circumference of the closure and between the lid portion and the retaining portion, essentially in the same way as the rest of the tear-off sealing element.
  • the end portion of the tear-off sealing element In a state where the closure is mounted onto the container the end portion of the tear-off sealing element extends peripherally of the circumference of the closure, thereby providing gripping means enabling the sealing element to be gripped and torn off, said end portion of the tear-off sealing element being provided with inner actuating means for radial displacement of said end portion by contact with an toroid bead portion on the outside of the neck of the container.
  • the present invention is an improvement of the closure of FR-A-1 422 230 by having the actuating means for radial displacement of the end portion of the gripping means disposed at a distance of the end of the end portion, the lid portion being hingedly connected to the retaining portion.
  • the present invention provides a sealed closure for containers, comprising a retaining portion for retaining the closure on the container, a lid portion connected to the retaining portion by hinge means, and a tear-off sealing element connecting the retaining portion and the lid portion in an initial sealed state and provided at its one end portion with gripping means to facilitate removal of the sealing element through tearing-off, which closure is lacking the aforementioned drawbacks connected with the known closure.
  • the present invention provides a sealed closure that prior to its mounting on the container does not have any gripping means extending peripherally therefrom, in that such gripping means are produced by the action of the container on the closure only when the closure is being mounted onto the container.
  • the gripping means according to the invention comprise one end portion of the tear-off sealing element, which end portion in an unmounted state of the closure extends along the circumference of the closure and between the lid portion and the retaining portion, essentially in the same way as the rest of the tear-off sealing element.
  • said end portion of the tear-off sealing element extends peripherally of the circumference of the closure, thereby providing gripping means enabling the sealing element to be gripped and torn off.
  • Said end portion of the tear-off sealing element with inner actuating means for radial displacement of said end portion by contact with a toroid bead portion on the outside of the neck of the container.
  • actuating means form an integral part of said end portion.
  • the actuating means for radial displacement of said end portion are arranged at a distance from the end of said end portion; it is preferred that said actuating means include a bulge or cambered portion arranged at the interior surface of said end portion, said bulge or cambered portion extending in direction of the center of the closure.
  • said end portion of the tear-off sealing element are provided, wholly or partially, with a surface or shape that facilitates gripping. Specifically, it may, for example, be provided with grooves or ripples or be corrugated or roughened in some other way.
  • the tear-off sealing element at its end portion or a part thereof extending from the end, in an unmounted state is neither joined to the retaining portion of the closure nor to the lid portion.
  • the present invention also provides a process for manufacture of a container having a sealed closure that prior to its mounting on the container does not have any gripping means extending peripherally therefrom, which gripping means are produced in the process by the action of the container on the closure when the closure is being mounted onto the container.
  • the closure 1 comprises a lid portion 2, a sealing element or strip 3, and a retaining ring portion 4 with a rotationally symmetric inner surface.
  • the sealing element 3 which has about the form of a ring segment is joined to the lid portion 2 and to the retaining portion 4 via bridge sections of the same plastic material having score lines 13, 14 that can be easily broken by tearing the sealing element 3 in the circumferential direction of the closure 1.
  • inner refers to surfaces which, when the closure 1 is mounted on a container, are facing the container 5, while “outer” refers to other surfaces; “outwards” refers to a direction from an outer surface, while “inwards” refers to a direction from an inner surface.
  • Figs. 1 and 2 the unmounted closure is shown in two axial sections differing in one respect that is, the profile of the inner surface of the sealing strip 3.
  • this profile 8 is about flat and forms a depression between bulge 6 at the lid portion 2 and bulge 7 at the retaining ring portion 3, as shown in the representation of axial section B - B (see Fig. 3) in Fig. 2, the respective profile 9 in the representation of axial section A - A (see fig. 6) in Fig. 1 is highly convex and bulging, thus forming a protuberance or bulge 10 (Fig. 3).
  • the major part of the inner surface of the sealing strip 3 has rather flat profile 8 extending on both sides of the bulge 10 along the sealing strip.
  • the bulge 10 is arranged at a rather short distance from one end of the sealing strip 3, prefarably about 1,5 to 2 cm.
  • Figs. 4 and 5 show two axial sections (B - B, E - E; see Fig. 6) corresponding to those illustrated in Figs. 1 and 2, respectively, but with the closure 1 mounted on the container 5.
  • the container 5 is made of plastic material similar to that used for the closure 1, but can be made of a wide range of materials, including glass.
  • the profile of the neck portion of the container 5 is provided with bulges and recesses at points where it faces surfaces of the closure 1 in such a way that closure 1 can be snapped onto the container 5 in the mounting process and be retained in locked position on the container, and that the lid portion 2, after removal of the sealing strip 3, can be opened and closed at will.
  • the toroid portion 11 is of interest; the horizontal section F - F shown in Figs. 2 and 5 dissects the toroid portion 11 at a point where its distance from the axis of container 1 is at maximum.
  • the toroid portion 11 is in abutting contact with this inner surface or at a short distance from it, depending on the exactness of fit and manufacture of the respective parts, but is not affecting said inner surface in a way that would displace it outwards; cf. Figs. 5 and 6.
  • the toroid portion 11 by reason of the comparatively high rigidity of the neck of the container 5 and the comparatively low rigidity of the sealing strip 3, displaces the sealing strip 3 outwards, as shown in Figs. 5 and 6.
  • the score lines 13 and 14 extend along the major part of the sealing ring 3. However the sealing ring 3 is not joined to the lid portion 2 and the retainer ring 4 in an the area where the bulge 10 is arranged.
  • the score line-free portion of the sealing strip 3 extends at both directions from the bulge 10, that is, in the one direction, from the bulge 10 to the end of sealing strip 3 at closest distance from it and, in the other direction, for a short distance only.
  • Arrow 12 in Fig. 3 indicates the point from which the score lines 13 and 14 are extending counter-clockwise.
  • the portion of the sealing strip 3 freed during the mounting process and intended to be gripped when the sealing strip 3 is torn off, is provided with shallow transverse grooves (not shown) at its outer and inner surfaces for better gripping.
  • the score lines 13 and 14 extend for a longer distance than shown in this embodiment, for example from the bulge 10 to the end most distant from it or over the entire length of the sealing strip 3. In the latter case it is important for sealing strip 3 rigidity and score line fragility to be properly matched, so as to ensure that the score lines 13,14 extending between the end of the sealing strip 3 closest to the bulge 10 and the bulge 10 are broken and the freed end portion of the sealing strip 3 is displaced outwards.
  • the sealing strip 3 may also be provided with a continuous bulging profile extending over a distance from one end of it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP92850080A 1992-04-10 1992-04-10 Container closure with tear-off seal Expired - Lifetime EP0564755B1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
EP92850080A EP0564755B1 (en) 1992-04-10 1992-04-10 Container closure with tear-off seal
DE69213211T DE69213211T2 (de) 1992-04-10 1992-04-10 Behälterverschluss mit Abreissband
DK92850080.0T DK0564755T3 (xx) 1992-04-10 1992-04-10
AT92850080T ATE141884T1 (de) 1992-04-10 1992-04-10 Behälterverschluss mit abreissband
TW081105094A TW206950B (en) 1992-04-10 1992-06-29 Container closure with tear-off seal
AU36806/93A AU665411B2 (en) 1992-04-10 1993-04-07 Container closure with abutting tear-off seal
MX9302020A MX9302020A (es) 1992-04-10 1993-04-07 Cierre para recipiente con contacto de sello de desgarre.
BR9301488A BR9301488A (pt) 1992-04-10 1993-04-07 Fecho selado para recipientes construidos de material plastico flexivel e processo para a fabricacao do dito fecho
ZA932517A ZA932517B (en) 1992-04-10 1993-04-08 Container closure with abutting tear-off seal
CN93105482A CN1038924C (zh) 1992-04-10 1993-04-09 带有邻接撕开式密封的容器罩

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92850080A EP0564755B1 (en) 1992-04-10 1992-04-10 Container closure with tear-off seal

Publications (2)

Publication Number Publication Date
EP0564755A1 EP0564755A1 (en) 1993-10-13
EP0564755B1 true EP0564755B1 (en) 1996-08-28

Family

ID=8212223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92850080A Expired - Lifetime EP0564755B1 (en) 1992-04-10 1992-04-10 Container closure with tear-off seal

Country Status (10)

Country Link
EP (1) EP0564755B1 (xx)
CN (1) CN1038924C (xx)
AT (1) ATE141884T1 (xx)
AU (1) AU665411B2 (xx)
BR (1) BR9301488A (xx)
DE (1) DE69213211T2 (xx)
DK (1) DK0564755T3 (xx)
MX (1) MX9302020A (xx)
TW (1) TW206950B (xx)
ZA (1) ZA932517B (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720722B1 (fr) * 1994-06-01 1996-08-14 Rical Sa Capsule de bouchage inviolable à verseur.
EP1554189B1 (en) * 2002-10-21 2006-07-26 Unilever N.V. Container with snap-on closure
CN100448753C (zh) * 2004-12-13 2009-01-07 陈栢蟾 具安全环带的非圆形容器
CN105775368A (zh) * 2016-04-11 2016-07-20 深圳市丽琦科技有限公司 具有双重密封功能的容器盖
AT520977B1 (de) * 2018-01-11 2020-02-15 Joma Kunststofftechnik Gmbh Behälter
CN114787045B (zh) * 2020-03-24 2024-05-14 赫斯基注塑系统有限公司 用于容器的封闭装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1422230A (fr) * 1964-11-09 1965-12-24 Dispositif unitaire de bouchage et surbouchage
EP0009525B1 (en) * 1978-10-10 1981-10-14 Johnsen & Jorgensen (Plastics) Limited Improvements in and relating to hinged closures for containers
SE469938B (sv) * 1987-12-08 1993-10-11 Duma Ab Behållareförslutning
US4798301A (en) * 1987-12-14 1989-01-17 Cap Snap Co. Tamper-resistant cap for wide mouth jar
GB8805847D0 (en) * 1988-03-11 1988-04-13 Johnsen Jorgensen Plastics Ltd Improved container & closure assembly
GB9018956D0 (en) * 1990-08-31 1990-10-17 Johnsen Jorgensen Plastics Ltd An improved tamper-resistant(tr)and child resistant(cr)closure and cap assembly

Also Published As

Publication number Publication date
CN1038924C (zh) 1998-07-01
DK0564755T3 (xx) 1997-02-10
ZA932517B (en) 1993-11-01
DE69213211D1 (de) 1996-10-02
MX9302020A (es) 1994-07-29
ATE141884T1 (de) 1996-09-15
DE69213211T2 (de) 1997-01-23
AU665411B2 (en) 1996-01-04
CN1080254A (zh) 1994-01-05
AU3680693A (en) 1993-10-14
TW206950B (en) 1993-06-01
BR9301488A (pt) 1993-10-13
EP0564755A1 (en) 1993-10-13

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