WO1991006196A1 - Microwave container with safety rim - Google Patents

Microwave container with safety rim Download PDF

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Publication number
WO1991006196A1
WO1991006196A1 PCT/EP1990/001714 EP9001714W WO9106196A1 WO 1991006196 A1 WO1991006196 A1 WO 1991006196A1 EP 9001714 W EP9001714 W EP 9001714W WO 9106196 A1 WO9106196 A1 WO 9106196A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
lid
edge
microwave
points
Prior art date
Application number
PCT/EP1990/001714
Other languages
German (de)
French (fr)
Inventor
Charles Claes
Original Assignee
Alcan Deutschland 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 Alcan Deutschland Gmbh filed Critical Alcan Deutschland Gmbh
Priority to JP1992600003U priority Critical patent/JPH05500005U/ja
Priority to AT90916733T priority patent/ATE90497T1/en
Priority to DE9090916733T priority patent/DE59001728D1/en
Publication of WO1991006196A1 publication Critical patent/WO1991006196A1/en

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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2004—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being maintained on the container by mechanical means, e.g. crimping, clamping, riveting
    • B65D77/2008—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being maintained on the container by mechanical means, e.g. crimping, clamping, riveting the container flange being crimped over the cover
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3453—Rigid containers, e.g. trays, bottles, boxes, cups

Definitions

  • the invention relates to a microwave container for heating food in a microwave oven, which consists of an electrically conductive material, in particular aluminum, and which has a lid projecting laterally from its upper container edge made of an electrically non-conductive material, such as plastic or the like is attached.
  • a microwave container of this type is already known from European patent application 0 161 739.
  • This known container has an attached lid, which surrounds the entire edge of the container with its rim and thus prevents direct contact with the furnace walls on all sides of the container, thereby avoiding a spark jump and thus malfunctions or even a defect in the furnace.
  • this lid of the known container has significant disadvantages. It has an elaborate three-dimensional shape and requires high manufacturing accuracy for a good fit when it is placed on the edge of the container. In addition, it requires a relatively large amount of material, since it protrudes laterally over its entire circumference over the container, and it does not allow a fixed, form-fitting lid attachment.
  • the object of the invention is therefore to provide a microwave container of the type described in the introduction, which has a lid which is simple and inexpensive to produce, which can be easily and securely attached to the container and which nevertheless ensures the spacing protection which serves to prevent arcing.
  • the container is designed with an essentially rectangular outline shape, it is sufficient if the cover only protrudes at the corner regions of the container, as a result of which sufficient securing of distance is achieved on all sides.
  • this expedient embodiment enables good fastening options and material savings for the cover.
  • the edge of the container is crimped or crimped around the edge of the lid at the points not protruded by the lid. In this way, a simple and inexpensive lid attachment is achieved, which enables a flat design of the entire lid, which can be placed * on the edge of the container.
  • the lid surfaces protruding beyond the edge of the container allow the container to be touched and removed from the microwave oven with unprotected fingers. There is a tight fit between the lid and Container no danger that the container will come off automatically.
  • Figure 1 shows a first embodiment with a flat lid placed on the container in a perspective view.
  • FIG. 3 shows a second embodiment with the lid placed on the container in a top view
  • Fig. 4 shows a cross section through the container with a lid along line B- -Bv- in Fig. 3 and
  • FIG. 5 shows a longitudinal section along line A-A in Fig. 3rd
  • the microwave container 1 shown in FIG. 1 which is rectangular in plan, and which is made of aluminum, has a circumferential flange-like container edge 4 which is bent outwards in a flange-like manner.
  • a flange flange 3 connects to this container edge and is recessed at the container corners.
  • the flange 3 stands vertically from the container edge 4.
  • a flat cover 2 made of plastic is placed on the container rim 4, which is fitted between the flanged flange which stands up on four sides and four which project laterally beyond the container rim Eckvor jrünge 8 has, which serve to secure the distance between the container and the furnace walls.
  • the upstanding flange flange 3 is flanged around the edge of the lid resting on the container edge 4.
  • the cover 2 on the longitudinal sides of the container each has a further projection 9 projecting laterally beyond the outer edge of the container edge, in the region of which the flange flange is recessed. This protrusion ensures an additional securing of the distance to avoid a spark jump.

Abstract

A microwave container for heating food in a microwave oven is made of an electrically conductive material, in particular aluminium. The container has a lid (2) made of an electrically non-conductive material, such as plastic or the like, which is secured to, and extends laterally beyond, the upper rim (4) of the container. According to the invention, only parts of the lid (2) extend laterally beyond the rim (4) of the container. The intermediate sections of the edge of the lid interlock with the container. If the microwave container is an essentially rectangular parallelepiped, the lid extends advantageously beyond the corner regions (8) of the container.

Description

MIKROWELLENBEHALTER MIT SICHERUNGSRAND MICROWAVE CONTAINER WITH SECURING EDGE
Die Erfindung betrifft einen Mikrowellenbehälter zur Erwärmung von Speisen in einem Mikrowellenofen, der aus einem elektrisch leitenden Material, insbesondere Aluminium, besteht und einen seinen oberen Behälterrand seitlich überragenden Deckel aus einem elektrisch nicht leitenden Material, wie Kunststoff oder dgl., hat, der am Behälterrand befestigt ist.The invention relates to a microwave container for heating food in a microwave oven, which consists of an electrically conductive material, in particular aluminum, and which has a lid projecting laterally from its upper container edge made of an electrically non-conductive material, such as plastic or the like is attached.
Ein Mikrowellenbehälter dieser Gattung ist bereits durch die europäische Patentanmeldung 0 161 739 bekannt. Dieser bekannte Behälter hat einen aufgestülpten Deckel, der mit seinem Stülprand den gesamten Behälterrand umgibt und damit an allen Seiten des Behälters einen unmittelbaren Kontakt mit den Ofenwänden verhindert, wodurch ein Funkenübersprung und somit Störungen oder gar ein Defekt des Ofens vermieden wird. Dieser Deckel des bekannten Behälters weist jedoch wesentliche Nachteile auf. Er hat eine aufwendig ausgebildete dreidimensionale Form und erfordert eine hohe Fertigungsgenauigkeit für eine gute Passung bei seinem Aufsetzen auf den Behälterrand. Zudem beansprucht er einen relativ großen Materialaufwand, da er an seinem gesamten Umfang über den Behälter seitlich übersteht, und er erlaubt keine feste forrnschlüssige Deckelbefestigung. Aufgabe der Erfindung ist es daher, einen Mikrowellenbehälter der eingangs beschriebenen Art zu schaffen, der einen in seiner Herstellung einfachen und kostengünstigen Deckel hat, der einfach und sicher am Behälter zu befestigen ist und trotzdem die zur Vermeidung von Funkenüberschlag dienende Abstandssicherung gewährleistet.A microwave container of this type is already known from European patent application 0 161 739. This known container has an attached lid, which surrounds the entire edge of the container with its rim and thus prevents direct contact with the furnace walls on all sides of the container, thereby avoiding a spark jump and thus malfunctions or even a defect in the furnace. However, this lid of the known container has significant disadvantages. It has an elaborate three-dimensional shape and requires high manufacturing accuracy for a good fit when it is placed on the edge of the container. In addition, it requires a relatively large amount of material, since it protrudes laterally over its entire circumference over the container, and it does not allow a fixed, form-fitting lid attachment. The object of the invention is therefore to provide a microwave container of the type described in the introduction, which has a lid which is simple and inexpensive to produce, which can be easily and securely attached to the container and which nevertheless ensures the spacing protection which serves to prevent arcing.
Diese Aufgabe wird erfindungsgemäß bei demThis object is achieved in the
Mikrowellenbehälter der eingangs genannten Gattung dadurch gelöst, daß der Deckel nur stellenweise mit seinem Rand über den Behälterrand seitlich hinausragt und die dazwischenliegenden Randbereiche des Deckels mit dem Behälter durch Formschluß verbunden sind.Microwave container of the type mentioned solved in that the lid only partially protrudes laterally with its edge over the container edge and the intermediate edge regions of the lid are connected to the container by positive locking.
Bei Ausbildung des Behälters mit einer im wesentlichen rechteckigen Grundrißform genügt es, wenn der Deckel nur an den Eckbereichen des Behälters übersteht, wodurch allseits eine ausreichende Abstandssicherung erreicht wird. Zudem ermöglicht diese zweckmäßige Ausführungsform eine gute Befestigungsmöglichkeit sowie eine Materialersparnis des Deckels.If the container is designed with an essentially rectangular outline shape, it is sufficient if the cover only protrudes at the corner regions of the container, as a result of which sufficient securing of distance is achieved on all sides. In addition, this expedient embodiment enables good fastening options and material savings for the cover.
Bei einer besonders zweckmäßigen Ausführungsform ist der Behälterrand an den vom Deckel nicht überragten Stellen um den Deckelrand herumgebördelt oder herumgekrimpt. Hierdurch wird eine einfache und kostengünstige Deckelbefestigung erzielt, die eine ebene Ausbildung des gesamten Deckels ermöglicht, der eben auf den Behälterrand aufgesetzt*werden kann.In a particularly expedient embodiment, the edge of the container is crimped or crimped around the edge of the lid at the points not protruded by the lid. In this way, a simple and inexpensive lid attachment is achieved, which enables a flat design of the entire lid, which can be placed * on the edge of the container.
Die über den Behälterrand hinausstehenden Deckelflächen ermöglichen ein Anfassen und Herausnehmen des Behälters aus dem Mikrowellenofen mit ungeschützten Fingern. Dabei besteht durch den festen Formschluß von Deckel und Behälter keine Gefahr, daß sich der Behälter selbsttätig löst.The lid surfaces protruding beyond the edge of the container allow the container to be touched and removed from the microwave oven with unprotected fingers. There is a tight fit between the lid and Container no danger that the container will come off automatically.
In der Zeichnung sind zwei besonders vorteilhafte Ausführungsformen der Erfindung dargestellt, die im folgenden beschrieben werden.The drawing shows two particularly advantageous embodiments of the invention, which are described below.
Es zeigen:Show it:
Fig. 1 eine erste Ausführungsform mit einem auf den Behälter aufgesetzten ebenen Deckel in perspektivischer Ansicht;Figure 1 shows a first embodiment with a flat lid placed on the container in a perspective view.
Fig. 2 diesen Behälter ohne Deckel mit hochstehendem noch nicht umgebördelten Bördelflansch, ebenfalls in perspektivischer Ansicht;2 shows this container without a lid with a raised flange flange which has not yet been flanged, likewise in a perspective view;
Fig. 3 eine zweite Ausführungsform mit auf den Behälter aufgesetztem Deckel in Draufsicht;3 shows a second embodiment with the lid placed on the container in a top view;
Fig. 4 einen Querschnitt durch den Behälter mit Deckel längs Linie B- —Bv- in Fig. 3 undFig. 4 shows a cross section through the container with a lid along line B- -Bv- in Fig. 3 and
Fig. 5 einen Längsschnitt längs Linie A-A in Fig. 3.5 shows a longitudinal section along line A-A in Fig. 3rd
Der in Fig. 1 gezeigte im Grundriß rechteckige Mikrowellenbehälter 1, der aus Aluminium gefertigt ist, hat einen umlaufenden flanschartig nach außen abgebogenen Behälterrand 4. An diesem Behälterrand schließt sich ein Bördelflansch 3 an, der an den Behälterecken ausgespart ist. Im unverschlossenen Zustand (Fig. 2) steht der Bördelflansch 3 senkrecht vom Behälterrand 4 hoch. Zum Verschließen des Behälters wird auf den Behälterrand 4 ein ebener Deckel 2 aus Kunststoff aufgesetzt, der zwischen den an vier Seiten hochstehenden Bördelflansch eingepaßt ist und vier über den Behälterrand seitlich hinausragende Eckvor jrünge 8 hat, die zur Abstandssicherung des Behälters gegenüber den Ofenwänden dienen. Um den Deckel 2 auf dem Behälter 1 zu fixieren, wird der hochstehende Bördelflansch 3 um den auf dem Behälterrand 4 aufliegenden Deckelrand umgebördelt.The microwave container 1 shown in FIG. 1, which is rectangular in plan, and which is made of aluminum, has a circumferential flange-like container edge 4 which is bent outwards in a flange-like manner. A flange flange 3 connects to this container edge and is recessed at the container corners. In the unlocked state (FIG. 2), the flange 3 stands vertically from the container edge 4. To close the container, a flat cover 2 made of plastic is placed on the container rim 4, which is fitted between the flanged flange which stands up on four sides and four which project laterally beyond the container rim Eckvor jrünge 8 has, which serve to secure the distance between the container and the furnace walls. In order to fix the lid 2 on the container 1, the upstanding flange flange 3 is flanged around the edge of the lid resting on the container edge 4.
In der in Fig. 3 bis 5 dargestellten Ausführungsform weist der Deckel 2 an den Längsseiten des Behälters je einen weiteren über die Außenkante des Behälterrandes seitlich hinausragenden Vorsprung 9 auf, in dessen Bereich der Bördelflansch ausgespart ist. Dieser Vorsprung gewährleistet eine zusätzliche Abstandssicherung zur Vermeidung eines Funkenübersprunges. In the embodiment shown in FIGS. 3 to 5, the cover 2 on the longitudinal sides of the container each has a further projection 9 projecting laterally beyond the outer edge of the container edge, in the region of which the flange flange is recessed. This protrusion ensures an additional securing of the distance to avoid a spark jump.

Claims

Ansprüche Expectations
1. Mikrowellenbehälter zur Erwärmung von Speisen in einem Mikrowellenofen, der aus einem elektrisch leitenden Material, insbesondere Aluminium, besteht und einen seinen oberen Behälterrand seitlich überragenden Deckel aus einem elektrisch nichtleitenden Material wie Kunststoff oder dgl., hat, der am Behälterrand befestigt ist, dadurch gekennzeichnet, daß der Deckel (2) nur stellenweise mit seinem Rand über den Behälterrand (4) seitlich hinausragt und die dazwischenliegenden Randbereiche des Deckels mit dem Behälter durch Formschluß verbunden sind.1. Microwave container for heating food in a microwave oven, which consists of an electrically conductive material, in particular aluminum, and has a top of its container edge laterally protruding lid made of an electrically non-conductive material such as plastic or the like, which is attached to the container edge, thereby characterized in that the lid (2) only protrudes laterally in places with its edge over the container edge (4) and the intermediate edge regions of the lid are connected to the container by positive locking.
2. Mikrowellenbehälter nach Anspruch 1 mit im wesentlichen eckigem Grundriß, dadurch gekennzeichnet, daß der Deckel (2) an den Eckbereichen (8) des Behälters übersteht.2. Microwave container according to claim 1 with a substantially angular plan, characterized in that the lid (2) on the corner regions (8) of the container protrudes.
3. Mikrowellenbehälter nach Anspruch 2, dadurch gekennzeichnet, daß der Deckel den Behälterrand (4) zusätzlich an mindestens einer Behälterseite stellenweise überragt.3. Microwave container according to claim 2, characterized in that the lid extends beyond the container edge (4) in places on at least one side of the container.
4.. Mikrowellenbehälter nach Anspruch 1, dadurch gekennzeichnet, daß der Behälterrand (4) an den vom Deckel (2) nicht überragten Stellen um dem Deckelrand herumgebördelt oder -gekrimpt ist.4 .. Microwave container according to claim 1, characterized in that the container edge (4) is crimped or crimped around the lid edge at the points not protruding from the lid (2).
5. Mikrowellenbehälter nach Anspruch 4, dadurch gekennzeichnet, daß die Bördelung oder Krimpung (5) des Behälterrandes (4) an dessen vom Deckel (2) überragten Stellen ausgespart ist. Mikrowellenbehälter nach Anspruch 1, dadurch gekennzeichnet, daß der Deckel (2) aus einem Zuschnitt gebildet ist, der an seinem Rande zur Bildung der den Behälterrand (4) seitlich überragenden Stellen zwischen diesen Stellen ausgeschnitten ist. 5. Microwave container according to claim 4, characterized in that the flanging or crimping (5) of the container edge (4) is recessed at the points thereof protruding from the lid (2). Microwave container according to claim 1, characterized in that the lid (2) is formed from a blank which is cut out on its edge to form the points projecting laterally beyond the container edge (4) between these points.
PCT/EP1990/001714 1989-10-11 1990-10-11 Microwave container with safety rim WO1991006196A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1992600003U JPH05500005U (en) 1989-10-11 1990-10-11
AT90916733T ATE90497T1 (en) 1989-10-11 1990-10-11 MICROWAVE CONTAINER WITH SAFETY RIM.
DE9090916733T DE59001728D1 (en) 1989-10-11 1990-10-11 MICROWAVE CONTAINER WITH SECURING EDGE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG8912119.8U 1989-10-11
DE8912119U DE8912119U1 (en) 1989-10-11 1989-10-11

Publications (1)

Publication Number Publication Date
WO1991006196A1 true WO1991006196A1 (en) 1991-05-02

Family

ID=6843636

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/001714 WO1991006196A1 (en) 1989-10-11 1990-10-11 Microwave container with safety rim

Country Status (6)

Country Link
EP (1) EP0495915B1 (en)
JP (1) JPH05500005U (en)
AT (1) ATE90497T1 (en)
DE (2) DE8912119U1 (en)
IS (1) IS3636A7 (en)
WO (1) WO1991006196A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5823421A (en) * 1995-08-23 1998-10-20 Field Group Plc Cardboard or like articles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6108963B2 (en) * 2013-05-30 2017-04-05 東洋アルミエコープロダクツ株式会社 Food cooking container

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161739A2 (en) * 1984-02-15 1985-11-21 Alcan International Limited Microwave heating package
US4558198A (en) * 1984-12-03 1985-12-10 Aluminum Company Of America Metal container system for use in microwave ovens
EP0299237A1 (en) * 1987-07-11 1989-01-18 Frisco-Findus Ag Package with a lid for food products
EP0326811A1 (en) * 1988-02-01 1989-08-09 Societe Des Produits Nestle S.A. Package for reconstituting a frozen pie or the like

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7209244U (en) * 1972-06-22 Josek A Packaging consisting of a container and a lid for food, etc.
DK137074B (en) * 1971-01-20 1978-01-16 Haustrup Ekco Aluminium Emball Lid part intended for welding on a metal container using thermoplastic binder.
DE2141203B2 (en) * 1971-08-17 1974-02-21 Ohler Eisenwerk, Theob. Pfeiffer, 5970 Plettenberg-Ohle Container with a lid
US4661671A (en) * 1986-01-08 1987-04-28 James River Corporation Package assembly with heater panel and method for storing and microwave heating of food utilizing same
US4868360A (en) * 1987-10-30 1989-09-19 Corning Glass Works Microwaveable/stovetop cooking utensil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161739A2 (en) * 1984-02-15 1985-11-21 Alcan International Limited Microwave heating package
US4558198A (en) * 1984-12-03 1985-12-10 Aluminum Company Of America Metal container system for use in microwave ovens
EP0299237A1 (en) * 1987-07-11 1989-01-18 Frisco-Findus Ag Package with a lid for food products
EP0326811A1 (en) * 1988-02-01 1989-08-09 Societe Des Produits Nestle S.A. Package for reconstituting a frozen pie or the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5823421A (en) * 1995-08-23 1998-10-20 Field Group Plc Cardboard or like articles

Also Published As

Publication number Publication date
EP0495915A1 (en) 1992-07-29
EP0495915B1 (en) 1993-06-09
ATE90497T1 (en) 1993-06-15
IS3636A7 (en) 1991-04-12
DE59001728D1 (en) 1993-07-15
DE8912119U1 (en) 1989-11-23
JPH05500005U (en) 1993-04-02

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