EP0495915B1 - Microwave container with safety rim - Google Patents
Microwave container with safety rim Download PDFInfo
- Publication number
- EP0495915B1 EP0495915B1 EP90916733A EP90916733A EP0495915B1 EP 0495915 B1 EP0495915 B1 EP 0495915B1 EP 90916733 A EP90916733 A EP 90916733A EP 90916733 A EP90916733 A EP 90916733A EP 0495915 B1 EP0495915 B1 EP 0495915B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- lid
- rim
- edge
- microwave oven
- 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
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Images
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 a lower part of a container made of an electrically conductive material, in particular aluminum, and an upper side of the upper container edge of an electrically non-conductive material such as plastic or the like, which is on the container edge is attached.
- a microwave container of this type is already known from European patent application EP 0 161 739 A2.
- This known container has an attached lid made of dielectric material, which surrounds the entire edge of the container with its turned edge and thus prevents direct contact with the furnace walls on all sides of the container, thereby avoiding 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 because it protrudes laterally over its entire circumference over the container, and it does not allow a fixed, form-fitting lid attachment.
- microwave container is known from European patent application EP 0 326 811 A1.
- This known microwave container has a flat cover which is advantageous for heating the dishes and which is coated with aluminum.
- This cover either rests loosely on the container filling, which protrudes slightly beyond the container edge in the direction of the container height, so that the cover is at a distance above the container edge, or it is provided on its edge with downwardly projecting feet, which are on the side of the container rest its wing and hold the cover a certain distance above the edge of the container. In both cases, a firm connection or anchoring of the cover to the container is neither wanted nor provided.
- the object of the invention is therefore to provide a microwave container of the type described at the outset, 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 to prevent arcing.
- the edge of the container is crimped or crimped around the lid edge at the points not protruded from 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 projecting 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.
- 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 outward in a flange-like manner.
- a 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 Has corner projections 8, which are used 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.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
- Package Specialized In Special Use (AREA)
- Closures For Containers (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
Description
Die Erfindung betrifft einen Mikrowellenbehälter zur Erwärmung von Speisen in einem Mikrowellenofen, der aus einem Behälterunterteil aus einem elektrisch leitenden Material, insbesondere Aluminium, und einem dessen oberen Behälterrand seitlich überragenden Deckel aus einem elektrisch nichtleitenden Material, wie Kunststoff oder dergleichen, besteht, der am Behälterrand befestigt ist.The invention relates to a microwave container for heating food in a microwave oven, which consists of a lower part of a container made of an electrically conductive material, in particular aluminum, and an upper side of the upper container edge of an electrically non-conductive material such as plastic or the like, which is on the container edge is attached.
Ein Mikrowellenbehälter dieser Gattung ist bereits durch die europäische Patentanmeldung EP 0 161 739 A2 bekannt. Dieser bekannte Behälter hat einen aufgestülpten Deckel aus dielektrischem Material, der mit seinem Stülprand den gesamten Behälterrand umgibt und damit an allen Seiten des Behälters dessen 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 Materialfaufwand, da er an seinem gesamten Umfang über den Behälter seitlich übersteht, und er erlaubt keine feste formschlüssige Deckelbefestigung.A microwave container of this type is already known from European patent application EP 0 161 739 A2. This known container has an attached lid made of dielectric material, which surrounds the entire edge of the container with its turned edge and thus prevents direct contact with the furnace walls on all sides of the container, thereby avoiding 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 because it protrudes laterally over its entire circumference over the container, and it does not allow a fixed, form-fitting lid attachment.
Ein weiterer Mikrowellenbehälter der eingangs genannten Art ist aus der US 4 558 198 bekannt. Der Deckel dieses bekannten Behälters umgibt ebenfalls den gesamten oberen Behälterrand, weshalb sich auch hier die oben geschilderten Nachteile ergeben.Another microwave container of the type mentioned is known from US 4,558,198. The lid of this known container also surrounds the entire upper edge of the container, which is why the disadvantages described above also arise here.
Ein weiterer Mikrowellenbehälter ist aus der europäischen Patentanmeldung EP 0 326 811 A1 bekannt. Dieser bekannte Mikrowellenbehälter hat eine für die Erwärmung der Speisen vorteilhafte, flächige Abdeckung, die mit Aluminium beschichtet ist. Diese Abdeckung ruht entweder lose auf der Behälterfüllung, die über den Behälterrand in Richtung der Behälterhöhe etwas hinausragt, so daß sich die Abdeckung im Abstand oberhalb des Behälterrandes befindet, oder sie ist an ihrem Rand mit nach unten ragenden Füßen versehen, die seitlich des Behälters auf dessen Tragfläche aufruhen und die Abdeckung in einem gewissen Abstand über dem Behälterrand halten. In beiden Fällen ist eine feste Verbindung oder Verankerung der Abdeckung an dem Behälter weder gewollt noch vorgesehen.Another microwave container is known from European patent application EP 0 326 811 A1. This known microwave container has a flat cover which is advantageous for heating the dishes and which is coated with aluminum. This cover either rests loosely on the container filling, which protrudes slightly beyond the container edge in the direction of the container height, so that the cover is at a distance above the container edge, or it is provided on its edge with downwardly projecting feet, which are on the side of the container rest its wing and hold the cover a certain distance above the edge of the container. In both cases, a firm connection or anchoring of the cover to the container is neither wanted nor provided.
Aus der europäischen Patentanmeldung EP 0 299 237 A1 ist ebenfalls ein Mikrowellenbehälter mit einem Stülpdeckel aus Kunststoff bekannt geworden. Dieser Stülpdeckel dient aber nicht nur zum Verschließen des Behälters, sondern in umgestürzter Lage auch als Wanne für ein Wasserbad, in welches der dann offene Behälter zur Erhitzung seines Inhalts eingesetzt werden kann. Der Deckel hat daher eine kontinuierlich umlaufende Seitenwand, die bei aufgesetztem Deckel den oberen Teil des Behälters umgibt. An diesen Rand schließen sich vier seitliche, durch Schlitze getrennte, vom Behälter schräg abstehende Wandabschnitte an, die zur Handhabung, zur Transportsicherung und zur Vermeidung von Funkenüberschlägen im Mikrowellenofen dienen. Aufgrund seiner Ausbildung mit einer ununterbrochen umlaufenden Seitenwand hat auch dieser Deckel die Nachteile eines relativ großen Materialaufwandes und einer herstellungstechnisch relativ aufwendigen, dreidimensionalen Form, die eine hohe Fertigungsgenauigkeit für einen exakten Sitz auf dem Behälterrand erfordert.From the European patent application EP 0 299 237 A1 a microwave container with a slip lid made of plastic has also become known. This slip lid serves however not only for closing the container, but in an overturned position also as a tub for a water bath, in which the then open container can be used to heat its contents. The lid therefore has a continuously circumferential side wall which, when the lid is in place, surrounds the upper part of the container. This edge is followed by four lateral wall sections separated by slots and protruding from the container at an angle, which are used for handling, securing during transport and avoiding arcing in the microwave oven. Due to its design with an uninterrupted circumferential side wall, this lid also has the disadvantages of a relatively large amount of material and a technically relatively complex, three-dimensional shape, which requires high manufacturing accuracy for an exact fit on the container edge.
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.The object of the invention is therefore to provide a microwave container of the type described at the outset, 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 to prevent arcing.
Diese Aufgabe wird erfindungsgemäß bei dem Mikrowellenbehälter der eingangs genannten Gattung dadurch gelöst, daß der Deckel nur stellenweise mit seinem Rand über den Behälterrand seitlich hinausragt und nur die dazwischenliegenden Randbereiche des Deckels mit dem Behälter durch Formschluß verbunden sind.This object is achieved in the microwave container of the type mentioned in that the lid only protrudes laterally in places with its edge over the container edge and only 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.When designing the container with an essentially rectangular 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 Behältetrand 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 lid edge at the points not protruded from 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 projecting 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:
- Fig. 1
- eine erste Ausführungsform mit einem auf den Behälter aufgesetzten ebenen Deckel in perspektivischer Ansicht;
- Fig. 2
- diesen Behälter ohne Deckel mit hochstehendem noch nicht umgebördelten Bördelflansch, ebenfalls in perspektivischer Ansicht;
- Fig. 3
- eine zweite Ausführungsform mit auf den Behälter aufgesetztem Deckel in Draufsicht;
- Fig. 4
- einen Querschnitt durch den Behälter mit Deckel längs Linie B-B in Fig. 3 und
- Fig. 5
- einen Längsschnitt längs Linie A-A in Fig. 3.
- Fig. 1
- a first embodiment with a flat lid placed on the container in a perspective view;
- Fig. 2
- this container without a lid with an upstanding not yet flanged flange, also in a perspective view;
- Fig. 3
- a second embodiment with the lid placed on the container in plan view;
- Fig. 4
- a cross section through the container with a lid along line BB in Fig. 3 and
- Fig. 5
- 3 shows a longitudinal section along line AA in FIG. 3.
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 Eckvorsprünge 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 outward in a flange-like manner. A
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
Claims (5)
- Container for heating food in a microwave oven which consists of a bottom container part of an electrically conductive material, in particular aluminium, and a lid of an electrically non-conductive material, such as plastic or the like, which protrudes laterally beyond the upper container rim and is secured to the container rim, characterised in that the lid (2) only protrudes laterally via its rim beyond the container rim (4) in places and only the rim areas of the lid which lie in between are positively connected to the container.
- Container for a microwave oven according to claim 1 with an essentially cornered plan form, characterised in that the lid (2) protrudes at the corner areas (8) of the container.
- Container for a microwave oven according to claim 2, characterised in that the lid additionally protrudes beyond the container rim (4) in places at least at one container side.
- Container for a microwave oven according to claim 1, characterised in that the container rim (4) is turned or crimped around the lid rim at the places where the lid (2) does not protrude.
- Container for a microwave oven according to claim 4, characterised in that the flanging or crimping (5) of the container rim (4) is recessed at the places where the lid (2) does not protrude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT90916733T ATE90497T1 (en) | 1989-10-11 | 1990-10-11 | MICROWAVE CONTAINER WITH SAFETY RIM. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8912119U DE8912119U1 (en) | 1989-10-11 | 1989-10-11 | Microwave container with safety edge |
| DE8912119U | 1989-10-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0495915A1 EP0495915A1 (en) | 1992-07-29 |
| EP0495915B1 true EP0495915B1 (en) | 1993-06-09 |
Family
ID=6843636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90916733A Expired - Lifetime EP0495915B1 (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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2304329B (en) * | 1995-08-23 | 1999-04-07 | Field Group Plc | Containers |
| 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 |
Family Cites Families (9)
| 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. |
| DE2166296A1 (en) * | 1971-08-17 | 1973-09-06 | Pfeiffer Ohler Eisen Theob | CONTAINER WITH LID |
| NZ210921A (en) * | 1984-02-15 | 1988-07-28 | Alcan Int Ltd | Package of foodstuff for microwave oven |
| US4558198A (en) * | 1984-12-03 | 1985-12-10 | Aluminum Company Of America | Metal container system for use in microwave ovens |
| 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 |
| DE3861747D1 (en) * | 1987-07-11 | 1991-03-14 | Frisco Findus Ag | PACKAGING WITH LID FOR EDIBLE GOODS. |
| US4868360A (en) * | 1987-10-30 | 1989-09-19 | Corning Glass Works | Microwaveable/stovetop cooking utensil |
| US4841112A (en) * | 1988-02-01 | 1989-06-20 | The Stouffer Corporation | Method and appliance for cooking a frozen pot pie with microwave energy |
-
1989
- 1989-10-11 DE DE8912119U patent/DE8912119U1/en not_active Expired - Lifetime
-
1990
- 1990-10-03 IS IS3636A patent/IS3636A7/en unknown
- 1990-10-11 EP EP90916733A patent/EP0495915B1/en not_active Expired - Lifetime
- 1990-10-11 JP JP1992600003U patent/JPH05500005U/ja active Pending
- 1990-10-11 DE DE9090916733T patent/DE59001728D1/en not_active Expired - Fee Related
- 1990-10-11 WO PCT/EP1990/001714 patent/WO1991006196A1/en active IP Right Grant
- 1990-10-11 AT AT90916733T patent/ATE90497T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05500005U (en) | 1993-04-02 |
| DE8912119U1 (en) | 1989-11-23 |
| EP0495915A1 (en) | 1992-07-29 |
| IS3636A7 (en) | 1991-04-12 |
| DE59001728D1 (en) | 1993-07-15 |
| WO1991006196A1 (en) | 1991-05-02 |
| ATE90497T1 (en) | 1993-06-15 |
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