EP0424897B1 - Plastic lid for blow moulded plastic barrels - Google Patents

Plastic lid for blow moulded plastic barrels Download PDF

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Publication number
EP0424897B1
EP0424897B1 EP90120363A EP90120363A EP0424897B1 EP 0424897 B1 EP0424897 B1 EP 0424897B1 EP 90120363 A EP90120363 A EP 90120363A EP 90120363 A EP90120363 A EP 90120363A EP 0424897 B1 EP0424897 B1 EP 0424897B1
Authority
EP
European Patent Office
Prior art keywords
cap
lid
barrel
flange
opening
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
EP90120363A
Other languages
German (de)
French (fr)
Other versions
EP0424897A3 (en
EP0424897A2 (en
Inventor
Eberhard Dr.-Dipl.-Ing. Wildfeuer
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.)
Schuetz-Werke & Co Kg GmbH
Original Assignee
Schuetz-Werke & Co Kg GmbH
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 Schuetz-Werke & Co Kg GmbH filed Critical Schuetz-Werke & Co Kg GmbH
Publication of EP0424897A2 publication Critical patent/EP0424897A2/en
Publication of EP0424897A3 publication Critical patent/EP0424897A3/en
Application granted granted Critical
Publication of EP0424897B1 publication Critical patent/EP0424897B1/en
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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/0218—Removable lids or covers without integral tamper element secured only by friction or gravity on both the inside and the outside of the mouth of the container
    • 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/32—Clamping or other pressure-applying devices for securing or retaining closure members for applying radial or radial and axial pressure, e.g. contractible bands encircling closure member
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342—Central part of the lid
    • B65D2543/00398—Reinforcing ribs in the central part of the closure
    • B65D2543/00416—Reinforcing ribs in the central part of the closure circular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/005—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container both cup and skirt
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00555—Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00953—Sealing means
    • B65D2543/00962—Sealing means inserted
    • B65D2543/00972—Collars or rings

Definitions

  • the invention relates to a plastic lid for blow-molded plastic drums, with an outer edge enclosing the barrel neck and an inner edge which dips into the barrel neck and protrudes beyond the lid bottom below the barrel opening, and with a sealing ring inserted between the outer lid edge and the inner lid edge, which is countered by a tension ring or tensioning wire the opening edge of the neck of the barrel is pressed, the clamping ring or tension wire engaging over a flange or flange sections formed at the bottom of the outer edge of the lid and engaging under a massive border that projects radially outwards from the barrel wall at a distance below the barrel opening, which is designed as a circumferential flange or divided into flange sections is.
  • the invention has for its object to provide a plastic lid which is improved in terms of its functional reliability.
  • the sealing arrangement of the lid can be used for barrels with a tension ring or tension wire lid closure. Due to the constant constant preload in the sealing rings, fatigue of the sealing ring material is prevented and a permanent sealing effect is achieved. In the event of unexpected damage to a sealing ring of the tandem seal, the tightness is still guaranteed by the second sealing ring.
  • a molded plastic cover 1 according to FIGS. 1 and 2 for a wide-necked barrel 2 has an outer edge 4 which surrounds the barrel neck 3 and an inner edge 5 which plunges into the barrel neck 3 and which projects beyond the lid base 6 below the barrel opening. Lid outer and inner edges 4, 5 form an annular space 7, from the bottom of which an annular web 8 projects axially.
  • Fig. 3 shows the same lid 1 for a wide neck barrel 2 ', in which the Bordur 12' is in the form of flange sections.
  • Fig. 4 shows a lid 1 'with the same sealing arrangement for a wide-neck drum 2' with the same Bordur 12 'divided into flange sections.
  • a used for closing the lid 1 'tension wire 15 engages under the flange sections of the border 12' and overlaps flange sections 16, which are integrally formed on the outer edge of the lid 4 ', the outer lid edge 4' penetrating the spaces between the flange sections of the border 12 'and the flange sections of the Bordur 12 'and the flange portions 16 of the outer lid edge 4' form wedge-shaped contact surfaces for the tensioning wire 15.
  • the two sealing rings 13 are connected to one another via a thin connecting web 17.
  • the exemplary embodiments of the sealing arrangement according to FIGS. 5 to 8 and 10 to 12 each show a cover with an annular web 8, which has a widened support surface 18. 9, the support surface 18 is determined by the width of the annular web 8.
  • 5 to 12 also show different training options for the opening edge of the barrel neck for the sealing rings 13 and their connecting web 17.

Abstract

Such plastic lids have an outer edge (4), surrounding the barrel neck (3), and an inner edge (5), which enters into the barrel neck (3) and projects over the lid bottom (6) below the barrel opening, and a sealing ring, inserted between the outer edge (4) and the inner edge (5) of the lid. Said sealing ring is pressed against the opening edge (14) of the barrel neck (3) by a clamping ring (10) or clamping wire, the clamping ring (10) or clamping wire gripping over a flange (11) or flange portions moulded onto the outer edge (4) of the lid at the bottom, and a solid rim (12), which projects radially outwards from the barrel wall, gripping with spacing below the barrel opening, which rim can be constructed as a peripheral flange or subdivided into flange portions. An axially projecting annular web (8) is moulded on from the base of an annular space (7) formed by the outer and inner edges (4 and 5) of the lid. When the lid (1) is closed, said annular web introduces axial forces, caused by stacking, dropping etc., directly into the barrel neck (3). Arranged on both sides of the annular web (8) are sealing rings (13) which rest with prestress on the opening edge (14) of the barrel neck (3) when the lid (1) is closed. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Kunststoffdeckel für blasgeformte Kunststoffässer, mit einen den Faßhals umschließenden Außenrand und einem in den Faßhals eintauchenden, über den Deckelboden unterhalb der Faßöffnung vorstehenden Innenrand sowie mit einem zwischen Deckelaußenrand und Deckelinnenrand eingelegten Dichtring, der durch einen Spannring bzw. Spanndraht gegen den Öffnungsrand des Faßhalses angepreßt ist, wobei der Spannring bzw. Spanndraht einen unten am Deckelaußenrand angeformten Flansch bzw. Flanschabschnitte übergreift und eine mit Abstand unterhalb der Faßöffnung von der Faßwand radial nach außen vorstehende massive Bordur untergreift, die als umlaufender Flansch ausgebildet oder in Flanschabschnitte unterteilt ist.The invention relates to a plastic lid for blow-molded plastic drums, with an outer edge enclosing the barrel neck and an inner edge which dips into the barrel neck and protrudes beyond the lid bottom below the barrel opening, and with a sealing ring inserted between the outer lid edge and the inner lid edge, which is countered by a tension ring or tensioning wire the opening edge of the neck of the barrel is pressed, the clamping ring or tension wire engaging over a flange or flange sections formed at the bottom of the outer edge of the lid and engaging under a massive border that projects radially outwards from the barrel wall at a distance below the barrel opening, which is designed as a circumferential flange or divided into flange sections is.

Bei einem derartigen aus der DE-C-25 44 491 bekannten Deckelfaß werden Stapelkräfte und beim Fall auftretende axiale Stoßkräfte über den am unteren Rand des Deckels angeformten Außenflansch auf die Bordur des Fasses übertragen. Dabei entstehen erhebliche Biegemomente, so daß die Gefahr besteht, daß Deckelflansch und/oder Faßbordur sowie der Spannring beschädigt werden und das Faß undicht und unbrauchbar wird.In such a lid barrel known from DE-C-25 44 491, stacking forces and axial impact forces which occur in the event of a fall are transmitted to the border of the barrel via the outer flange formed on the lower edge of the lid. This creates considerable bending moments, so that there is a risk that the cover flange and / or barrel border and the clamping ring will be damaged and the barrel will leak and become unusable.

Der Erfindung liegt die Aufgabe zugrunde, einen hinsichtlich seiner Funktionssicherheit verbesserten Kunststoffdeckel zu schaffen.The invention has for its object to provide a plastic lid which is improved in terms of its functional reliability.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale gemäß Kennzeichen des Patentanspruchs 1 gelöst.This object is achieved by the features according to the characterizing part of patent claim 1.

Zweckmäßige Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Appropriate developments of the invention are characterized in the subclaims.

Der erfindungsgemäße Kunststoffdeckel zeichnet sich durch folgende Vorteile aus:The plastic lid according to the invention is characterized by the following advantages:

Stapellasten und schlagartig auftretende Axialbelastungen, z.B. beim Fall aus der Höhe, werden bei einer an keiner Stelle überbeanspruchten und damit gleichmäßig wirkenden Dichtung über den Deckel unmittelbar in den Faßmantel abgeleitet, so daß weder der Außenflansch am unteren Deckelrand noch die Faßbordur Biegebeanspruchungen ausgesetzt werden. Die Dichtungsanordnung des Deckels ist für Fässer mit Spannring- oder Spanndraht-Deckelverschluß anwendbar. Aufgrund der stets konstanten Vorspannung in den Dichtringen wird einer Ermüdung des Dichtringmaterials vorgebeugt und damit eine dauerhafte Dichtwirkung erzielt. Im Falle einer unerwarteten Beschädigung eines Dichtringes der Tandemdichtung wird die Dichtheit immer noch durch den zweiten Dichtring gewährleistet.Stack loads and sudden axial loads, e.g. in the case of a fall from a height, if the seal is not overstressed at any point and thus acts uniformly, the cover is drawn off directly into the barrel casing, so that neither the outer flange at the lower edge of the lid nor the barrel border are subjected to bending stresses. The sealing arrangement of the lid can be used for barrels with a tension ring or tension wire lid closure. Due to the constant constant preload in the sealing rings, fatigue of the sealing ring material is prevented and a permanent sealing effect is achieved. In the event of unexpected damage to a sealing ring of the tandem seal, the tightness is still guaranteed by the second sealing ring.

Die Erfindung ist nachstehend anhand eines Weithalsfasses mit Spannringverschluß und eines solchen mit Spanndrahtverschluß erläutert. Es zeigen

Fig. 1 und 2
den Faßhalsbereich eines Weithalsfasses mit Spannringverschluß und umlaufender Faßbordur, und zwar in Fig. 1 in geöffnetem und in Fig. 2 in geschlossenem Zustand,
Fig. 3
den gleichen Faßhalsbereich eines Fasses mit unterbrochener Bordur,
Fig. 4
den Faßhalsbereich eines Weithalsfasses mit Spanndrahtverschluß und die
Fign. 5 bis 12
verschiedene Ausführungsbeispiele der Deckeldichtung.
The invention is explained below with the aid of a wide-neck barrel with a tension ring closure and one with a tension wire closure. Show it
1 and 2
the neck region of a wide neck barrel with a clamping ring closure and circumferential barrel border, namely in FIG. 1 in the open state and in FIG. 2 in the closed state,
Fig. 3
the same barrel neck area of a barrel with an interrupted border,
Fig. 4
the barrel neck area of a wide neck barrel with tension wire lock and the
Fig. 5 to 12
different embodiments of the cover seal.

Ein aus Kunststoff gespritzter Deckel 1 nach den Fign. 1 und 2 für ein Weithalsfaß 2 weist einen den Faßhals 3 umschließenden Außenrand 4 und einen in den Faßhals 3 eintauchenden Innenrand 5 auf, der über den Deckelboden 6 unterhalb der Faßöffnung vorsteht. Deckelaußen- und -innenrand 4, 5 bilden einen Ringraum 7, von dessen Grund ein Ringsteg 8 axial vorsteht. Gemäß Fig. 1 ist der Ringsteg 8 mit einer Zweikomponenten-Dichtungsmasse 9, z.B. Polyurethan mit Härter, umspritzt.A molded plastic cover 1 according to FIGS. 1 and 2 for a wide-necked barrel 2 has an outer edge 4 which surrounds the barrel neck 3 and an inner edge 5 which plunges into the barrel neck 3 and which projects beyond the lid base 6 below the barrel opening. Lid outer and inner edges 4, 5 form an annular space 7, from the bottom of which an annular web 8 projects axially. According to Fig. 1, the ring web 8 with a two-component sealant 9, e.g. Polyurethane with hardener, overmoulded.

Beim Schließen des Deckels 1 mittels eines Spannringes 10, der einen unten am Deckelaußenrand 4 angeformten umlaufenden Flansch 11 übergreift und eine mit Abstand unterhalb der Faßöffnung von der Faßwand radial nach außen vorstehende massive Bordur 12 untergreift, wird der Ringsteg 8 unter Aufteilung der Dichtungsmasse 9 in zwei Dichtringe 13 auf den Öffnungsrand 14 des Faßhalses 3 aufgepreßt, wobei die Dichtringe 13 über den Öffnungsrand 14 vorgespannt werden (Fig. 2). Bei geschlossenem Spannring 10 berühren sich der Flansch 11 und die Bordur 12 nicht, so daß auf den Deckel 1 einwirkende Axialkräfte sicher und unmittelbar in den Faßhals 3 und damit in den Faßkörper übertragen werden.When the lid 1 is closed by means of a clamping ring 10, which engages over a circumferential flange 11 formed on the outer edge 4 of the lid and engages under a massive border 12 projecting radially outwardly from the barrel wall at a distance below the barrel opening, the annular web 8 is divided into sealants 9 two sealing rings 13 are pressed onto the opening edge 14 of the barrel neck 3, the sealing rings 13 being prestressed over the opening edge 14 (FIG. 2). When the clamping ring 10 is closed, the flange 11 and the border 12 do not touch, so that axial forces acting on the cover 1 are transmitted safely and directly into the barrel neck 3 and thus into the barrel body.

Fig. 3 zeigt den gleichen Deckel 1 für ein Weithalsfaß 2′, bei dem die Bordur 12′ in Form von Flanschabschnitten ausgebildet ist.Fig. 3 shows the same lid 1 for a wide neck barrel 2 ', in which the Bordur 12' is in the form of flange sections.

Fig. 4 zeigt einen Deckel 1′ mit der gleichen Dichtungsanordnung für ein Weithalsfaß 2′ mit der gleichen in Flanschabschnitte unterteilten Bordur 12′. Ein zum Schließen des Deckels 1′ verwendeter Spanndraht 15 untergreift die Flanschabschnitte der Bordur 12′ und übergreift Flanschabschnitte 16, die unten am Deckelaußenrand 4′ angeformt sind, wobei der Deckelaußenrand 4′ die Zwischenräume zwischen den Flanschabschnitten der Bordur 12′ durchdringt und die Flanschabschnitte der Bordur 12′ sowie die Flanschabschnitte 16 des Deckelaußenrandes 4′ keilförmige Anlageflächen für den Spanndraht 15 bilden.Fig. 4 shows a lid 1 'with the same sealing arrangement for a wide-neck drum 2' with the same Bordur 12 'divided into flange sections. A used for closing the lid 1 'tension wire 15 engages under the flange sections of the border 12' and overlaps flange sections 16, which are integrally formed on the outer edge of the lid 4 ', the outer lid edge 4' penetrating the spaces between the flange sections of the border 12 'and the flange sections of the Bordur 12 'and the flange portions 16 of the outer lid edge 4' form wedge-shaped contact surfaces for the tensioning wire 15.

Bei den Ausführungsbeispielen der Dichtungsanordnung gemäß den Fign. 5 bis 12 sind die beiden Dichtringe 13 über einen dünnen Verbindungssteg 17 miteinander verbunden. Die Ausführungsbeispiele der Dichtungsanordnung nach den Fign. 5 bis 8 und 10 bis 12 zeigen jeweils einen Deckel mit einem Ringsteg 8, der eine verbreiterte Stützfläche 18 aufweist. Bei der Dichtungsanordnung nach Fig. 9 ist die Stützfläche 18 durch die Breite des Ringsteges 8 bestimmt.In the exemplary embodiments of the sealing arrangement according to FIGS. 5 to 12, the two sealing rings 13 are connected to one another via a thin connecting web 17. The exemplary embodiments of the sealing arrangement according to FIGS. 5 to 8 and 10 to 12 each show a cover with an annular web 8, which has a widened support surface 18. 9, the support surface 18 is determined by the width of the annular web 8.

Die Fig. 5 bis 12 zeigen außerdem unterschiedliche Ausbildungsmöglichkeiten des Öffnungsrandes des Faßhalses zur Anlage der Dichtringe 13 bzw. deren Verbindungssteges 17.5 to 12 also show different training options for the opening edge of the barrel neck for the sealing rings 13 and their connecting web 17.

Durch eine profilierte, z.B. gezahnte (Fig. 8) oder gewellte (Fig. 10), Ausbildung des Öffnungsrandes wird eine labyrinthartige Abdichtung des Deckels 1 bzw. 1′ erzielt.Through a profiled, e.g. serrated (Fig. 8) or corrugated (Fig. 10), formation of the opening edge, a labyrinth-like seal of the cover 1 or 1 'is achieved.

Claims (7)

  1. Plastics cap for blow-moulded, plastics containers, with an outer rim (4) surrounding the container neck (3) and an inner rim (5) extending into the container neck (3), and a sealing ring (13) fitted in between the cap outer rim (4) and the cap inner rim (5) and protruding beyond the cap base (6) below the container opening, which sealing ring (13) is pressed against the opening margin (14) of the container neck (3) by a clamping ring (10) for tightening wire, wherein the clamping ring (10) or tightening wire engages over a flange (11) or flange sections formed below on the cap outer rim (4) and engages under a flange (12) projecting radially outwardly from the container wall at a distance below the container opening the flange (12) being continuous or divided into flange sections, characterized in that there is formed an annular web (8) projecting axially from the bottom of the annular space (7) formed by the cap outer and inner rims (4, 5) for conducting the axial forces created with the cap (1) closed by stacking, dropping, etc. directly into the container neck (3) and that a further sealing ring (13) is provided, the sealing rings (13) being arranged on both sides of the annular web (8) and bearing with pre-tension on the opening margin (14) or the container neck (3) with the cap (1) closed.
  2. Cap according to claim 1, characterized in that in the case of a clamping ring closure, the flanges (11, 12) are spaced from one another with the cap (1) closed.
  3. Cap according to claim 1 or 2, characterized in that the sealing rings (13) are connected together by a thin connecting web (17) in the region of the annular web (8) between this and the opening margin (14) of the container neck (3).
  4. Cap according to any of claims 1 to 3, characterized in that the annular web (8) has a widened support face (18).
  5. Cap according to any of claims 1 to 3, characterized in that the support face (18) is determined by the web thickness.
  6. Cap according to any of claims 1 to 5, characterized in that the sealing rings (13) are injection moulded from plastics material, e.g. polyurethane.
  7. Cap according to any of claims 1, 2, 4 and 5, characterized by pre-formed inset sealing rings (13).
EP90120363A 1989-10-26 1990-10-24 Plastic lid for blow moulded plastic barrels Expired - Lifetime EP0424897B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3935693 1989-10-26
DE3935693 1989-10-26

Publications (3)

Publication Number Publication Date
EP0424897A2 EP0424897A2 (en) 1991-05-02
EP0424897A3 EP0424897A3 (en) 1992-04-08
EP0424897B1 true EP0424897B1 (en) 1994-09-14

Family

ID=6392287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90120363A Expired - Lifetime EP0424897B1 (en) 1989-10-26 1990-10-24 Plastic lid for blow moulded plastic barrels

Country Status (19)

Country Link
US (1) US5074428A (en)
EP (1) EP0424897B1 (en)
JP (1) JPH0737267B2 (en)
CN (1) CN1023467C (en)
AT (1) ATE111410T1 (en)
CA (1) CA2028539A1 (en)
CS (1) CS519290A3 (en)
DE (3) DE3937613A1 (en)
DK (1) DK0424897T3 (en)
ES (1) ES2059953T3 (en)
GB (1) GB2238043B (en)
IE (1) IE64405B1 (en)
NO (1) NO179742C (en)
PL (1) PL164534B1 (en)
PT (1) PT95679B (en)
RU (1) RU1801096C (en)
SK (1) SK278608B6 (en)
YU (1) YU47803B (en)
ZA (1) ZA908116B (en)

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Also Published As

Publication number Publication date
EP0424897A3 (en) 1992-04-08
JPH0737267B2 (en) 1995-04-26
PT95679B (en) 1998-07-31
CS519290A3 (en) 1992-03-18
PL164534B1 (en) 1994-08-31
DE9011590U1 (en) 1990-11-08
NO904631L (en) 1991-04-29
US5074428A (en) 1991-12-24
GB2238043B (en) 1993-10-20
YU199290A (en) 1994-06-24
CN1051703A (en) 1991-05-29
CA2028539A1 (en) 1991-04-27
IE903841A1 (en) 1991-05-08
CN1023467C (en) 1994-01-12
YU47803B (en) 1996-01-09
RU1801096C (en) 1993-03-07
NO904631D0 (en) 1990-10-25
IE64405B1 (en) 1995-08-09
GB2238043A (en) 1991-05-22
ATE111410T1 (en) 1994-09-15
ES2059953T3 (en) 1994-11-16
SK278608B6 (en) 1997-11-05
GB9023308D0 (en) 1990-12-05
JPH03212358A (en) 1991-09-17
DK0424897T3 (en) 1995-02-13
NO179742C (en) 1996-12-11
NO179742B (en) 1996-09-02
DE3937613A1 (en) 1991-05-02
DE59007130D1 (en) 1994-10-20
EP0424897A2 (en) 1991-05-02
PT95679A (en) 1991-09-13
ZA908116B (en) 1991-07-31

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