EP0117500A2 - Fermeture pour récipient - Google Patents

Fermeture pour récipient Download PDF

Info

Publication number
EP0117500A2
EP0117500A2 EP84101737A EP84101737A EP0117500A2 EP 0117500 A2 EP0117500 A2 EP 0117500A2 EP 84101737 A EP84101737 A EP 84101737A EP 84101737 A EP84101737 A EP 84101737A EP 0117500 A2 EP0117500 A2 EP 0117500A2
Authority
EP
European Patent Office
Prior art keywords
annular groove
film
cap
container neck
cap base
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.)
Ceased
Application number
EP84101737A
Other languages
German (de)
English (en)
Other versions
EP0117500A3 (fr
Inventor
Joachim Lindenau
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.)
Max Huebner & Co GmbH
Huebner GmbH and Co KG
Original Assignee
Max Huebner & Co GmbH
Huebner GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Max Huebner & Co GmbH, Huebner GmbH and Co KG filed Critical Max Huebner & Co GmbH
Publication of EP0117500A2 publication Critical patent/EP0117500A2/fr
Publication of EP0117500A3 publication Critical patent/EP0117500A3/fr
Ceased 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
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/045—Discs

Definitions

  • the invention relates to a container closure with a closure cap that can be placed on a container neck, in the bottom of which a V-shaped or U-shaped annular groove is formed, into which the container neck is immersed in the closed position.
  • Such closures usually consist of a closure cap made of plastic and a correspondingly adapted and designed container neck, wherein sealing lips are usually formed on the inside of the cap or sealing elements are arranged in order to enable a tight seating of the cap on the container neck in the closed position.
  • sealing lips are usually formed on the inside of the cap or sealing elements are arranged in order to enable a tight seating of the cap on the container neck in the closed position.
  • a container closure according to the preamble of claim 1 is already known (DE-A-19 47 657), in which a circumferential annular groove is formed in the cap bottom, into which the container neck is immersed in the closed position.
  • the cross section of the ring groove is shown complementary to the immersing section of the container neck.
  • a container closure is known (DE-A-27 40 731), in which an outwardly projecting annular bead is formed on the end face of the container neck.
  • this ring bead is pressed into a cap which has previously been heated to a suitable softening temperature.
  • a metal foil is provided on the cap base, which is pressed into the cap together with the bead.
  • the object of the invention is to provide a simple and robustly constructed closure which ensures a tight closure between the cap and the container neck even after repeated use of the closure in the event of tolerance deviations.
  • the invention is significantly characterized by the combinatorial interaction of the film with the annular groove formed in the cap base, which is bridged by the film leaving a free space, since the film clings tightly to the neck of the container that plunges into the annular groove, sealing slightly backwards can escape into the free space and thus rests with prestress on the container neck.
  • the free space behind the film allows the container neck to be immersed more or less deeply, which means that plus / minus tolerances in the container diameter and unevenness in the plane of the mouth or end face of the container neck can be compensated for.
  • the outer surface of the piercing container neck lies against the outer ring groove surface with the interposition of the film which is slightly pushed backwards.
  • the film wrapped by the immersed container neck between the ring groove and the container neck can expediently be designed to be vacuum-tight and preferably has a plastic layer, in particular made of polypropylene or polyethylene, which can be welded to the plastic of the cap, and an aluminum coating on the surface facing the container neck.
  • a plastic layer in particular made of polypropylene or polyethylene, which can be welded to the plastic of the cap, and an aluminum coating on the surface facing the container neck.
  • the annular groove is expediently formed by a bead formed in the cap base, the thickness of the cap base can also be retained in the annular groove region, which contributes to increasing the strength and thus durability of the closure cap.
  • this design saves material compared to shaping the annular groove into the full material.
  • the same advantage is achieved in that the ring groove is delimited or formed by two concentric ring projections, which at the same time are used as fastening points of an internally arranged, aluminum-coated or coated film.
  • the film is expediently fastened to the cap by welding, for which purpose fastening projections are provided on the cap bottom, which fuse in one piece with the plastic of the film. A particularly firm connection of the film to the cap base is achieved by the projections.
  • a firm connection of the vacuum-tight film to the cap base in the outer area, which is essential for the sealing effect even after a long period of use, is favored by an edge-side beveling of the container neck, because this significantly increases the effective fastening area for the film, namely by the strength of the tool stamp movement past the thread of the thread is reduced.
  • Formation of the neck of the container can namely reduce the width of the ring groove and thus to a certain extent move radially inward while increasing the outer ring area. This increases the sealing surface in the contact area between the container neck and the ring groove surface, in particular in connection with the film.
  • the sealing function is further favored by an elastically flexible sealing compound which is applied to the film.
  • This sealing compound can be introduced between the film and the cap, but is preferably applied on the side of the film facing the container neck.
  • This sealing compound can be applied over the entire surface of the film, but preferably extends in the overlap area of the annular groove. This sealing compound can also adapt to the smallest irregularities, so that a very tight seal is ensured.
  • air chambers between the film and the cap base which serve as a heat barrier and thus prevent deformation of the cap base as a result of a container material heated for packaging reasons.
  • These air chambers are expediently delimited by webs or projections which keep the film at a distance from the base of the cap.
  • an insulating air chamber immediately results, which excludes deformations of the plastic cap in the immediate closure area.
  • the container closure generally designated 1
  • the container closure comprises a closure cap 2 which can be placed on a container neck 3.
  • the closure cap 2 is attached to the container neck 3 by means of a screw and / or snap closure, a corresponding thread or snap bead being illustrated on the cap side and neck side for clarification in the figures.
  • the closure cap 2 which is expediently made of plastic, has an annular groove 4 opposite the end face of the container neck 3.
  • the annular groove 4 has a V-shaped cross section, which opens towards the inner surface 5 of the bottom 6 of the closure cap 2.
  • the annular groove 4 is formed according to FIG. 1 by a bead 7 formed in the cap base 6, which projects beyond the outer surface 8 of the cap base 6. Because of this bead 7, the annular groove 4 can be formed while saving material. Nevertheless, if necessary, the annular groove can be formed in a bead-like bead 7 which is wider than the embodiment according to FIG. 1, this embodiment being particularly suitable for containers 1 for reasons of strength with a large neck diameter.
  • a suitably vacuum-tight film 9 is attached to the inner surface 5 of the cap base 6.
  • This consists for example of a composite of two or three layers, namely a polypropylene or polyethylene layer, an aluminum foil and possibly a polyester layer.
  • the vacuum-tight film in particular overlaps the annular groove 4 and lies in the annular groove area in a sealing manner between the container neck 3 which penetrates the annular groove when the container is closed, and the corresponding annular groove surface.
  • the film also delimits an insulating air chamber with the annular groove, the function of which will be described below.
  • the vacuum-tight film is ultrasonically welded to the inner surface 5 of the cap base 6, but it can also be glued to the inner surface or sprayed onto it.
  • projections 10 are provided on its inner surface 5 which project downwards in the direction of the container neck 3 and which are particularly clearly shown in FIG. 3. These projections also keep the film 9 at a distance from the cap base 6, whereby air chambers are formed between the film and the cap, which protect the cap base from the heat of the container goods heated for packaging reasons.
  • the projections shown there have an essentially V-shaped cross section and are expediently pointed at the ends.
  • the projections 10, which run in a ring on the cap base 6, are provided on both sides of the annular groove 4 and expediently run concentrically to the annular groove 4. In the region of the projection tips, the cap 6 is welded to the film 9 and thus to a firm and intimate bond between the two Components.
  • the container neck 3 is tapered on its outer edge towards the top. This is achieved by means of an inclined surface 12 which encloses an acute angle with the vertical. In the illustrated embodiment, this angle is 20 to 25 °, advantageously 22 °.
  • This inclined surface on the outer edge of the container neck 3 is extremely advantageous because it effectively increases the fastening area for the vacuum-tight film 9 on the cap base 6.
  • the sealing effect is further increased by the fact that due to the screw and / or snap connection between the closure cap 2 and the container neck 3, as is indicated, for example, in the figures by threads 11, a pretension between the cap 2 and the container neck 3 is achieved, so that the Tight closure is effectively maintained even with shock loads.
  • the annular groove 4 does not extend into the cap base, but the annular groove 4 is delimited by two projections 13 arranged at a radial distance, which form insulating air chambers between them.
  • the projections 13 are expediently designed to be somewhat stronger than the fastening projections 10, but are also used to fasten the film 9.
  • the container neck 3 sticks into this annular groove 4 and pinches the vacuum-tight film 9 between it and the two projections 13. This embodiment is characterized by its ease of manufacture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP84101737A 1983-02-23 1984-02-20 Fermeture pour récipient Ceased EP0117500A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8305022U 1983-02-23
DE19838305022 DE8305022U1 (de) 1983-02-23 1983-02-23 Behaelterverschluss

Publications (2)

Publication Number Publication Date
EP0117500A2 true EP0117500A2 (fr) 1984-09-05
EP0117500A3 EP0117500A3 (fr) 1985-10-02

Family

ID=6750300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101737A Ceased EP0117500A3 (fr) 1983-02-23 1984-02-20 Fermeture pour récipient

Country Status (2)

Country Link
EP (1) EP0117500A3 (fr)
DE (1) DE8305022U1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756437A (en) * 1986-02-27 1988-07-12 W. R. Grace & Co. Closure cap with vapor impermeable lamina
FR2631933A1 (fr) * 1988-05-30 1989-12-01 Astra Plastique Dispositif de bouchage hermetique
RU2105705C1 (ru) * 1996-09-06 1998-02-27 Закрытое акционерное общество "НИТЭК" Винтовой колпачок для укупорки тары с резьбой на горлышке
EP1041009A3 (fr) * 1999-03-31 2001-11-21 Rexam Containers Limited Récipient et capuchon de fermeture
DE102014006282A1 (de) * 2014-05-02 2015-11-19 Georg Menshen Gmbh & Co. Kg Schraubverschluss
WO2020035420A1 (fr) * 2018-08-15 2020-02-20 Bericap Holding Gmbh Capuchon de fermeture destiné à des récipients à contenu sensible à la lumière
CN111137550A (zh) * 2018-11-05 2020-05-12 义乌市易开盖实业公司 适应性强的高密封性包装容器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL183978B (nl) * 1953-02-04 Hazenveld Martin Gerard Kleerhanger of dergelijke.
US2804225A (en) * 1953-05-26 1957-08-27 Ling H Lee Closure for receptacle
CH556274A (de) * 1973-03-01 1974-11-29 Obrist Albert & Co Gefaess mit schraubkappe.
CH657589A5 (de) * 1981-11-19 1986-09-15 Ernst & Co Inh Geiger & Neuens Schraubdeckel mit innen- und aussendeckel.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756437A (en) * 1986-02-27 1988-07-12 W. R. Grace & Co. Closure cap with vapor impermeable lamina
FR2631933A1 (fr) * 1988-05-30 1989-12-01 Astra Plastique Dispositif de bouchage hermetique
RU2105705C1 (ru) * 1996-09-06 1998-02-27 Закрытое акционерное общество "НИТЭК" Винтовой колпачок для укупорки тары с резьбой на горлышке
EP1041009A3 (fr) * 1999-03-31 2001-11-21 Rexam Containers Limited Récipient et capuchon de fermeture
DE102014006282A1 (de) * 2014-05-02 2015-11-19 Georg Menshen Gmbh & Co. Kg Schraubverschluss
WO2020035420A1 (fr) * 2018-08-15 2020-02-20 Bericap Holding Gmbh Capuchon de fermeture destiné à des récipients à contenu sensible à la lumière
CN112533840A (zh) * 2018-08-15 2021-03-19 百利盖控股有限公司 具有光敏内容物的容器的封闭盖
EP3837184A1 (fr) * 2018-08-15 2021-06-23 Bericap Holding GmbH Capuchon de fermeture destiné à des récipients à contenu sensible à la lumière
CN111137550A (zh) * 2018-11-05 2020-05-12 义乌市易开盖实业公司 适应性强的高密封性包装容器

Also Published As

Publication number Publication date
EP0117500A3 (fr) 1985-10-02
DE8305022U1 (de) 1983-08-11

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR LI NL

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): AT BE CH DE FR LI NL

17P Request for examination filed

Effective date: 19851112

17Q First examination report despatched

Effective date: 19860924

STAA Information on the status of an ep patent application or granted ep patent

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18R Application refused

Effective date: 19870704

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LINDENAU, JOACHIM