EP3699109B1 - Container for storing food - Google Patents

Container for storing food Download PDF

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Publication number
EP3699109B1
EP3699109B1 EP20150273.9A EP20150273A EP3699109B1 EP 3699109 B1 EP3699109 B1 EP 3699109B1 EP 20150273 A EP20150273 A EP 20150273A EP 3699109 B1 EP3699109 B1 EP 3699109B1
Authority
EP
European Patent Office
Prior art keywords
container
lid
rim
base
side wall
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.)
Active
Application number
EP20150273.9A
Other languages
German (de)
French (fr)
Other versions
EP3699109A1 (en
Inventor
Matthias Bünker
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.)
Pro Pac Ostendorf Plastic Thermoformfolien und Verpackungen & Co KG GmbH
Original Assignee
Pro Pac Ostendorf Plastic Thermoformfolien und Verpackungen & Co KG GmbH
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Publication of EP3699109A1 publication Critical patent/EP3699109A1/en
Application granted granted Critical
Publication of EP3699109B1 publication Critical patent/EP3699109B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/14Non-removable lids or covers
    • B65D43/16Non-removable lids or covers hinged for upward or downward movement
    • B65D43/162Non-removable lids or covers hinged for upward or downward movement the container, the lid and the hinge being made of one piece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D21/00Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0209Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
    • B65D21/0217Containers with a closure presenting stacking elements
    • B65D21/0219Containers with a closure presenting stacking elements the closure presenting projecting peripheral elements receiving or surrounding the bottom or peripheral elements projecting from the bottom of a superimposed container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0235Removable lids or covers with integral tamper element
    • B65D43/0264Removable lids or covers with integral tamper element secured only by friction or gravity before removal of the tamper element
    • B65D43/0268Removable lids or covers with integral tamper element secured only by friction or gravity before removal of the tamper element on both the inside and the outside of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2401/00Tamper-indicating means
    • B65D2401/60Tearable part both of the container and of the closure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00027Stackable lids or covers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00064Shape of the outer periphery
    • B65D2543/00074Shape of the outer periphery curved
    • B65D2543/00092Shape of the outer periphery curved circular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00259Materials used
    • B65D2543/00296Plastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00453Contact between the container and the lid in a peripheral U-shaped channel of the container
    • B65D2543/00462Contact between the container and the lid in a peripheral U-shaped channel of the container peripheral U-shaped channel of the lid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00611Profiles
    • B65D2543/0062Groove or hollow bead
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00675Periphery concerned
    • B65D2543/00685Totality
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00722Profiles
    • B65D2543/00731Groove or hollow bead
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00787Periphery concerned
    • B65D2543/00796Totality
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00824Means for facilitating removing of the closure
    • B65D2543/00833Integral tabs, tongues, handles or similar
    • B65D2543/00842Integral tabs, tongues, handles or similar outside of the lid

Definitions

  • the present invention relates to a container for holding food according to the preamble of claim 1.
  • a container is made of US2013/313275A1 known.
  • this packaging is essentially only used to transport food, it is thin-walled, lightweight packaging that is disposed of after transport as a disposable item.
  • Such packs often also contain lids that are either firmly attached to the container via a film hinge or can be placed freely on the container.
  • Lids that can be placed freely are disadvantageous to a certain extent because they have to be manufactured, stored and disposed of separately from the container.
  • Lids that are firmly connected to the container can usually be folded over and tend to be a hindrance when using a container in the folded state.
  • lidded food containers that are easy to use, particularly when used for food that is taken directly from the container for consumption (to go), that are simple in construction and inexpensive to manufacture.
  • the container according to the invention can therefore be used as a one-piece container with a lid, or alternatively the lid can be separated from the container after removal from the container, so that the container can then be used as a lidless container.
  • the tear-off line is preferably a predetermined breaking line running in a straight line in the film hinge, which line contains a large number of micro-perforations in the form of holes or gaps arranged in a row. These perforations are nearly invisible to the naked eye, but may be present in sufficient numbers in the tear line to allow the lid to be removed with little effort. In extreme cases, the tear line can consist of just a few connecting bridges between the lid and the container.
  • the joint between the container and the lid is designed in such a way that it is under resilient pretension in a position in which the lid is placed on the upper edge of the container.
  • the lid When the lid is removed from the opening of the container, the lid reaches an unfolded rest position with an erection angle of 30 - 80° relative to the edge of the container. This makes it possible for the user not to actively put the lid in has to bring a certain position.
  • the lid remains in this rest position, which allows easy removal of the food from the container.
  • the lid can also be placed back onto the container to temporarily reseal the container. On the other hand, it can also be completely separated from the container, so that so that a lidless container is achieved. However, it is still possible to put the lid back on the container.
  • the film joint is formed between a first flat surface projection on the upper edge of the side wall of the container and a second flat surface projection on the side of the lid, the first and second surface projections being in a position of the Cover lie essentially in one plane and run parallel to each other at a distance from each other when the container is closed.
  • the surface extensions are connected to one another via a U- or V-shaped indentation with a connection area and two lateral legs between the surface extensions, with the tear-off line being located in the middle of the connection area.
  • the lid preferably has a depression formed on the edge, into which a bead formed on the upper edge of the container engages with sufficient clamping force. At the same time, this ensures that the container is sealed.
  • gripping areas on the lid and container that are offset relative to one another can be provided.
  • the base of the container preferably has a four- to eight-cornered edge shape.
  • the cover has a corresponding profile on the upper side. This allows uniform containers with lids to be stacked on top of each other.
  • the profiling of the lid can additionally be designed in such a way that a lid and the base of a container are subjected to a clamping force when they are placed on top of each other can interlock and the lid can be captively connected to the bottom despite removal from the top of the container.
  • the lid can thus form a kind of saucer, so to speak, which can catch any liquid that may run off the edge of the container.
  • the side wall of the container has a somewhat conical cross-section.
  • two containers 1 and 2 are shown in perspective view, each containing fitted lids 3 and 4, respectively.
  • the lids 3 and 4 are connected to the containers 1 and 2 via film hinges 7 and 8, respectively.
  • Gripping areas 5 and 6 that are offset relative to one another are provided on the sides of the container and lid for easier removal of the lid.
  • FIG. 2 shows a container 1 with the lid 3 folded down by 180°, which is connected to the container 1 via the joint 7 .
  • a peripheral bead 9 on the container 1 engages in a peripheral recess 12 of the lid 3 under clamping force.
  • the container 1 can thus be covered on the one hand and sealed in a liquid-tight manner on the other hand.
  • the top view shown shows an open container 1 with an octagonal side wall 11.
  • the container 1 contains a profile 17 on the base, the shape of which essentially corresponds to the profile 16 in the lid.
  • Lid 3 and container 1 are connected to one another via the film hinge 7, which is formed from the two surface projections 13 and 14 and the depression 15, which contains a tear-off or predetermined breaking line 20 in its central region.
  • Container 1 and lid 3 are hinged together at tear line 20 but can be easily separated along this line.
  • the container and lid are made of the same transparent thin plastic material, such as PP, the outside and inside profiles 16 and 17 are formed essentially on both sides of the plastic material and can therefore be used on the outside with a corresponding shape and/or internally intertwine.
  • the cover 3 can also contain markings and other profiles.
  • FIG 5 a detailed sectional view through an unfolded joint is shown.
  • a flat surface lip 13 On one side of the container 1 is formed a flat surface lip 13 and on the opposite side of the lid 3 there is a similar flat surface lip 14 .
  • the depression 15 with side legs 18 and 19 runs between the surface projections 13 and 14.
  • the tear-off line 20 is formed in the middle region of the depression, via which the lid 3 and container 1 are connected to one another in an articulated manner and can be separated from one another.
  • FIG. 6 shows the joint 7 in a rest position in which the connecting edges 23 and 24, via which the surface projections 14 and 13 merge into the legs 19 and 18, touch one another.
  • installation angles 22 which are preferably between 30° and 80°. These installation angles allow the lid 3 to be in a holding position relative to the container 1, in which a user can hold the container open in order to be able to remove food from it without the lid having to be held in the holding position manually or the lid tipping over to a greater or lesser extent.
  • Figure 12 shows a detail plan view of the hinge, indentation 15 and tear line 20.
  • the figure shows micro-perforations 21 at the tear line, shown in this enlarged view as a series of gaps in the tear line. Between the gaps, only small connections are formed between the adjoining areas of the depression 15, so that the connections can be easily torn open.
  • the gaps can also be formed as a series of micro-holes arranged in a line, so small that they are almost invisible to the naked eye.
  • the container and lid are shown in an overall view in a rest position of about 70° of the lid 3 relative to the container 1.
  • the connecting edges 23 and 24 touch one another so that the lid 3 is in the rest position due to its connection to the container via the tear-off line 20 .
  • FIG. 10 shows a plan view of a container with a hinge 7 that is closed with a lid.
  • the container can be opened using the grip areas 5 and 6 .
  • 11 1 shows a side view of two containers 1 and 2 stacked one inside the other, provided with slightly conically designed side walls, with folded-down lids 3 and 4, which are connected to one another via joints 7 and 8, respectively. In this way, a large number of containers can be stacked to save space.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Description

Die vorliegende Erfindung betrifft einen Behälter zur Aufnahme von Lebensmitteln nach dem Oberbegriff des Anspruchs 1. Ein solcher Behälter ist aus US2013/313275A1 bekannt.The present invention relates to a container for holding food according to the preamble of claim 1. Such a container is made of US2013/313275A1 known.

Vor allem frische Lebensmittel, wie Gemüse, Salate, Fleisch und Fisch, werden heute in Lebensmittelgeschäften überwiegend in Leichtverpackungen aus Kunststoff angeboten und vertrieben. Sie bestehen meist aus transparentem oder nicht transparentem Polystyrol, PET, PP oder anderen lebensmittelgeeigneten Materialien. Für gestimmte Lebensmittel kommen auch Aluminiumschalen in Betracht. Für Getränke werden auch häufig Pappbecher verwendet, die mit abnehmbaren Deckeln aus Kunststoff versehen werden können.Fresh foods in particular, such as vegetables, salads, meat and fish, are now offered and sold in grocery stores primarily in lightweight plastic packaging. They are mostly made of transparent or non-transparent polystyrene, PET, PP or other food-grade materials. Aluminum trays can also be used for prepared foods. Paper cups, which can be fitted with removable plastic lids, are also commonly used for beverages.

Soweit diese Verpackungen im Wesentlichen nur zum Transport von Lebensmitteln verwendet werden, handelt es sich um dünnwandige Leichtverpackungen, die nach dem Transport als Einwegartikel entsorgt werden.If this packaging is essentially only used to transport food, it is thin-walled, lightweight packaging that is disposed of after transport as a disposable item.

Derartige Verpackungen enthalten häufig auch Deckel, die entweder über ein Filmgelenk fest an dem Behälter angebracht sind oder frei auf den Behälter aufsetzbar sind. Frei aufsetzbare Deckel sind in gewissem Maße nachteilig, weil sie getrennt vom Behälter hergestellt, gelagert und entsorgt werden müssen. Fest mit dem Behälter verbundene Deckel können in der Regel umgeklappt werden und sind bei der Benutzung eines Behälters im umgeklappten Zustand eher hinderlich.Such packs often also contain lids that are either firmly attached to the container via a film hinge or can be placed freely on the container. Lids that can be placed freely are disadvantageous to a certain extent because they have to be manufactured, stored and disposed of separately from the container. Lids that are firmly connected to the container can usually be folded over and tend to be a hindrance when using a container in the folded state.

Es besteht daher Bedarf an mit Deckeln versehenen Behältern für Lebensmittel, die die Benutzung erleichtern, insbesondere bei Verwendung für Lebensmittel, die unmittelbar aus dem Behälter zum Verzehr (to go) entnommen werden, die einfach aufgebaut sind und kostengünstig herstellbar sind.There is therefore a need for lidded food containers that are easy to use, particularly when used for food that is taken directly from the container for consumption (to go), that are simple in construction and inexpensive to manufacture.

Diese Aufgabe wird durch die im Anspruch 1 angegebene Erfindung gelöst. Weitergehende Ausführungsformen der Erfindung sind in Unteransprüchen angegeben.This object is achieved by the invention specified in claim 1. Further embodiments of the invention are specified in the dependent claims.

Die Erfindung geht aus von einem Behälter zur Aufnahme von Lebensmitteln, der eine Basis mit einer einstückig ausgebildeten umlaufenden Seitenwand und einen Deckel aufweist, der auf einen oberen Rand der Seitenwand aufsetzbar ist und mit dem Behälter über ein randseitiges Gelenk derart verbunden ist, dass der Deckel im geschlossenen Zustand des Behälters die Oberseite des Behälters bildet und zum Öffnen des Behälters über das Gelenk in eine Offenstellung gebracht werden kann, wobei das Gelenk als Filmgelenk zwischen der Seitenwand des Behälters und einem Randbereich des Deckels ausgebildet und mit einer Abreißlinie versehen, an der der Deckel von der Seitenwand des Behälters manuell abtrennbar ist, ,dadurch gekennzeichnet,

  • dass das Gelenk in einer Stellung, in der der Deckel auf den oberen Rand des Behälters aufgesetzt ist, unter federnder Vorspannung steht,
  • dass der Deckel bei Öffnung des Behälters in eine Ruhestellung mit einem Aufstellwinkel von 30 - 80 ° gegenüber dem Rand des Behälters gelangt,
  • dass das Filmgelenk zwischen einem ersten ebenen Flächenansatz am oberen Rand der Seitenwand des Behälters und einem zweiten ebenen Flächenansatz an einer Seite des Deckels ausgebildet ist, wobei die ersten und zweiten Flächenansätze in einer um 180° gegenüber dem Rand des Behälters aufgeklappten Stellung des Deckels im Wesentlichen in einer Ebene liegen und bei geschlossenem Behälter parallel zueinander verlaufen, und
  • dass die Flächenansätze über eine U- oder V-förmige Vertiefung mit einem Verbindungsbereich und zwei seitlichen Schenkeln zwischen den Flächenansätzen miteinander verbunden sind, wobei die Abreißlinie sich in der Mitte des Verbindungsbereichs befindet.
The invention relates to a container for holding food, which has a base with a one-piece peripheral side wall and a lid which can be placed on an upper edge of the side wall and is connected to the container via an edge joint in such a way that the lid forms the top of the container when the container is closed and can be brought into an open position to open the container via the hinge, the hinge being designed as a film hinge between the side wall of the container and an edge area of the lid and provided with a tear-off line at which the lid is manually detachable from the side wall of the container,,characterized in that
  • that the joint is under spring tension in a position in which the lid is placed on the upper edge of the container,
  • that when the container is opened, the lid comes into a resting position at an angle of 30 - 80 ° to the edge of the container,
  • that the film hinge is formed between a first flat surface projection on the upper edge of the side wall of the container and a second flat surface projection on one side of the lid, the first and second surface projections being in a position of the lid which is essentially open by 180° relative to the edge of the container lie in one plane and are parallel to each other when the container is closed, and
  • that the surface extensions are connected to one another via a U- or V-shaped depression with a connecting area and two lateral legs between the surface extensions, the tear-off line being located in the middle of the connecting area.

Der erfindungsgemäße Behälter kann daher als einteiliger Behälter mit Deckel verwendet werden oder alternativ kann der Deckel nach dem Abnehmen vom Behälter von dem Behälter abgetrennt werden, so dass der Behälter dann wie ein deckelloser Behälter verwendet werden kann.The container according to the invention can therefore be used as a one-piece container with a lid, or alternatively the lid can be separated from the container after removal from the container, so that the container can then be used as a lidless container.

Die Abreißlinie ist vorzugsweise eine geradlinig verlaufende Sollbruchlinie in dem Filmgelenk, welche eine Vielzahl von in einer Reihe angeordneten loch- oder spaltförmigen Mikro-Perforationen enthält. Diese Perforationen sind mit bloßem Auge nahezu unsichtbar, aber können in einer solchen Anzahl in der Abreißlinie vorhanden sein, dass das Entfernen des Deckels mit nur wenig Kraftaufwand erfolgen kann. Im Extremfall kann die Abreißlinie aus nur wenigen Verbindungsbrücken zwischen Deckel und Behälter bestehen.The tear-off line is preferably a predetermined breaking line running in a straight line in the film hinge, which line contains a large number of micro-perforations in the form of holes or gaps arranged in a row. These perforations are nearly invisible to the naked eye, but may be present in sufficient numbers in the tear line to allow the lid to be removed with little effort. In extreme cases, the tear line can consist of just a few connecting bridges between the lid and the container.

Das Gelenk zwischen Behälter und Deckel ist so ausgebildet, dass es in einer Stellung, in der der Deckel auf den oberen Rand des Behälters aufgesetzt ist, unter federnder Vorspannung steht. Bei Abnahme des Deckels von der Öffnung des Behälters gelangt der Deckel in eine aufgeklappte Ruhestellung mit einem Aufstellwinkel von 30 - 80 ° gegenüber dem Rand des Behälters. Damit wird es möglich, dass der Nutzer den Deckel nicht aktiv in eine bestimmte Stellung zu bringen hat. Der Deckel verbleibt in dieser Ruhestellung, die eine bequeme Entnahme des Lebensmittels aus dem Behälter erlaubt. Der Deckel kann zum temporären Wiederverschließen des Behälters auch wieder auf den Behälter aufgesetzt werden. Andererseits kann er auch von dem Behälter ganz abgetrennt werden, so dass damit ein deckelloser Behälter erreicht wird. Ein Wiederaufsetzen des Deckels auf den Behälter bleibt gleichwohl möglich.The joint between the container and the lid is designed in such a way that it is under resilient pretension in a position in which the lid is placed on the upper edge of the container. When the lid is removed from the opening of the container, the lid reaches an unfolded rest position with an erection angle of 30 - 80° relative to the edge of the container. This makes it possible for the user not to actively put the lid in has to bring a certain position. The lid remains in this rest position, which allows easy removal of the food from the container. The lid can also be placed back onto the container to temporarily reseal the container. On the other hand, it can also be completely separated from the container, so that so that a lidless container is achieved. However, it is still possible to put the lid back on the container.

Gemäß der Erfindung ist das Filmgelenk zwischen einem ersten ebenen Flächenansatz an dem oberen Rand der Seitenwand des Behälters und einem zweiten ebenen Flächenansatz an der Seite des Deckels ausgebildet, wobei die ersten und zweiten Flächenansätze in einer um 180° gegenüber dem Rand des Behälters aufgeklappten Stellung des Deckels im Wesentlichen in einer Ebene liegen und bei geschlossenem Behälter parallel mit Abstand zueinander verlaufen. Die Flächenansätze sind über eine U- oder V- förmige Vertiefung mit einem Verbindungsbereich und zwei seitlichen Schenkeln zwischen den Flächenansätzen miteinander verbunden, wobei die Abreißlinie sich in der Mitte des Verbindungsbereichs befindet.According to the invention, the film joint is formed between a first flat surface projection on the upper edge of the side wall of the container and a second flat surface projection on the side of the lid, the first and second surface projections being in a position of the Cover lie essentially in one plane and run parallel to each other at a distance from each other when the container is closed. The surface extensions are connected to one another via a U- or V-shaped indentation with a connection area and two lateral legs between the surface extensions, with the tear-off line being located in the middle of the connection area.

Diese Gestaltung des Filmgelenks ermöglicht es, dass in geschlossenem Zustand des Behälters die Schenkel der Vertiefung unter Federspannung stehen. Bei Abnahme des Deckels vom Behälter führt die Spannung dazu, dass der Deckel sich aufrichtet und eine Ruhestellung von 30 - 80° einnimmt, in der die beidseitigen Kanten der Vertiefung zwar noch aneinander stoßen, aber die Federspannung der Schenkel aufgehoben ist.This design of the film joint makes it possible for the legs of the recess to be under spring tension when the container is in the closed state. When the lid is removed from the container, the tension causes the lid to straighten up and assume a rest position of 30 - 80°, in which the two-sided edges of the recess still abut, but the spring tension of the legs is released.

Damit der Deckel sich durch die Federspannung des Filmgelenks nicht selbsttätig öffnet, weist der Deckel vorzugsweise eine randseitig ausgebildete Vertiefung auf, in die eine am oberen Rand des Behälters ausgebildete Wulst unter genügender Klemmkraft eingreift. Damit wird gleichzeitig die Dichtheit des Behälters gewährleistet.So that the lid does not open automatically as a result of the spring tension of the film hinge, the lid preferably has a depression formed on the edge, into which a bead formed on the upper edge of the container engages with sufficient clamping force. At the same time, this ensures that the container is sealed.

Um Deckel und Behälter leicht voneinander zu trennen, können gegeneinander versetzte Anfassbereiche an Deckel und Behälter vorgesehen sein.In order to easily separate the lid and container from one another, gripping areas on the lid and container that are offset relative to one another can be provided.

In weiterer Ausgestaltung der Erfindung weist die Basis des Behälters vorzugsweise eine vier- bis achteckige Randform auf. Der Deckel weist dabei eine entsprechende oberseitige Profilierung auf. Damit können gleichförmige Behälter mit Deckel passend aufeinander gestapelt werden. Die Profilierung des Deckels kann ergänzend so gestaltet sein, dass ein Deckel und die Basis eines Behälters beim Aufeinandersetzen unter Klemmkraft ineinandergreifen können und der Deckel damit trotz Entfernung von der Oberseite des Behälters unverlierbar mit der Unterseite verbunden werden kann. Der Deckel kann damit gleichsam eine Art von Untertasse bilden, die vom Rand des Behälters u.U. ablaufende Flüssigkeit auffangen kann.In a further embodiment of the invention, the base of the container preferably has a four- to eight-cornered edge shape. The cover has a corresponding profile on the upper side. This allows uniform containers with lids to be stacked on top of each other. The profiling of the lid can additionally be designed in such a way that a lid and the base of a container are subjected to a clamping force when they are placed on top of each other can interlock and the lid can be captively connected to the bottom despite removal from the top of the container. The lid can thus form a kind of saucer, so to speak, which can catch any liquid that may run off the edge of the container.

Um Leerbehälter der erfindungsgemäßen Art mit oder ohne Deckel ineinander stapeln zu können, ist die Seitenwand des Behälters im Querschnitt etwas konisch gestaltet.In order to be able to stack empty containers of the type according to the invention with or without a lid, the side wall of the container has a somewhat conical cross-section.

Die Erfindung wird nachstehend anhand eines Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1
eine perspektivische Ansicht zweiter übereinander gestapelter Behälter,
Fig. 2
eine Seitenansicht eines Behälter mit aufgeklapptem Deckel,
Fig. 3
eine Draufsicht auf einen Behälter mit aufgeklapptem Deckel,
Fig. 4
eine Unteransicht auf einen Behälter mit aufgeklapptem Deckel,
Fig. 5
eine Schnittansicht durch ein Gelenk zwischen Behälter und Deckel,
Fig. 6
eine Schnittansicht durch ein Gelenk zwischen Behälter und Deckel in Ruhestellung,
Fig. 7
eine Schnittansicht durch ein Gelenk zwischen Behälter und Deckel in geschlossener Ansicht,
Fig. 8
eine Draufsicht auf ein Gelenk,
Fig. 9
eine Seitenansicht eines Behälters mit Deckel in aufgeklappter Ruhestellung,
Fig. 10
eine Draufsicht auf einen Behälter mit aufgesetztem Deckel,
Fig. 11
eine Seitenansicht zweier übereinander gestapelter Behälter mit jeweils abgeklapptem Deckel.
The invention is explained in more detail below using an exemplary embodiment. Show it:
1
a perspective view of two stacked containers,
2
a side view of a container with the lid open,
3
a plan view of a container with the lid open,
4
a bottom view of a container with the lid open,
figure 5
a sectional view through a joint between container and lid,
6
a sectional view through a joint between container and lid in the rest position,
7
a sectional view through a joint between container and lid in the closed view,
8
a top view of a joint,
9
a side view of a container with a lid in the open rest position,
10
a top view of a container with the lid on,
11
a side view of two containers stacked one on top of the other, each with the lid folded down.

In Fig. 1 sind zwei Behälter 1 und 2 in perspektivischer Ansicht gezeigt, die jeweils aufgesetzte Deckel 3 bzw. 4 enthalten. Die Deckel 3 und 4 sind über Filmgelenke 7 bzw. 8 mit den Behältern 1 bzw. 2 verbunden. Zum leichteren Abnehmen der Deckel sind an den Seiten von Behälter und Deckel gegeneinander versetzte Anfassbereiche 5 und 6 vorgesehen.In 1 two containers 1 and 2 are shown in perspective view, each containing fitted lids 3 and 4, respectively. The lids 3 and 4 are connected to the containers 1 and 2 via film hinges 7 and 8, respectively. Gripping areas 5 and 6 that are offset relative to one another are provided on the sides of the container and lid for easier removal of the lid.

Fig. 2 zeigt einen Behälter 1 mit um 180° abgeklapptem Deckel 3, der über das Gelenk 7 mit dem Behälter 1 verbunden ist. In zusammengesetzter Stellung von Deckel 3 und Behälter 1 greift eine umlaufende Wulst 9 am Behälter 1 unter Klemmkraft in eine umlaufende Vertiefung 12 des Deckels 3 ein. Damit lässt sich der Behälter 1 einerseits abdecken und andererseits flüssigkeitsdicht verschließen. 2 shows a container 1 with the lid 3 folded down by 180°, which is connected to the container 1 via the joint 7 . When the lid 3 and the container 1 are in the assembled position, a peripheral bead 9 on the container 1 engages in a peripheral recess 12 of the lid 3 under clamping force. The container 1 can thus be covered on the one hand and sealed in a liquid-tight manner on the other hand.

Die in Fig. 3 dargestellte Draufsicht zeigt einen geöffneten Behälter 1 mit einer achteckigen Seitenwand 11. Der Behälter 1 enthält an der Basis eine Profilierung 17, deren Gestalt im Wesentlichen der Profilierung 16 im Deckel entspricht. Deckel 3 und Behälter 1 sind über das Filmgelenk 7 miteinander verbunden, das aus den beiden Flächenansätzen 13 und 14 und der Vertiefung 15 gebildet ist, welche in ihrem mittleren Bereich eine Abreiß- oder Sollbruchlinie 20 enthält. Behälter 1 und Deckel 3 sind über die Abreißlinie 20 gelenkig miteinander verbunden, aber können entlang dieser Linie leicht voneinander getrennt werden.In the 3 The top view shown shows an open container 1 with an octagonal side wall 11. The container 1 contains a profile 17 on the base, the shape of which essentially corresponds to the profile 16 in the lid. Lid 3 and container 1 are connected to one another via the film hinge 7, which is formed from the two surface projections 13 and 14 and the depression 15, which contains a tear-off or predetermined breaking line 20 in its central region. Container 1 and lid 3 are hinged together at tear line 20 but can be easily separated along this line.

Fig. 4 zeigt eine Unteransicht von Behälter 1 und damit verbundenem Deckel 3. Da Behälter und Deckel aus dem gleichen transparenten dünnen Kunststoffmaterial, wie PP, bestehen, sind die außenseitigen und innenseitigen Profilierungen 16 und 17 im Wesentlichen beidseitig des Kunststoffmaterials ausgebildet und können damit bei entsprechender Formgebung außenseitig und/oder innenseitig ineinandergreifen. 4 shows a bottom view of container 1 and the lid 3 connected to it. Since the container and lid are made of the same transparent thin plastic material, such as PP, the outside and inside profiles 16 and 17 are formed essentially on both sides of the plastic material and can therefore be used on the outside with a corresponding shape and/or internally intertwine.

Auf der Basis 10 sind noch Verwendungszweck, Materialeigenschaften und Stabilisierungsprofile eingearbeitet. Auch der Deckel 3 kann Kennzeichnungen und weitere Profilierungen enthalten.Purpose, material properties and stabilization profiles are incorporated into the base 10. The cover 3 can also contain markings and other profiles.

In Fig. 5 ist eine Detail-Schnittansicht durch ein aufgeklapptes Gelenk gezeigt. An einer Seite des Behälters 1 ist ein ebener Flächenansatz 13 ausgebildet, und an der gegenüberliegenden Seite des Deckels 3 ist ein gleichartiger ebener Flächenansatz 14 vorhanden. Zwischen den Flächenansätzen 13 und 14 verläuft die Vertiefung 15 mit Seitenschenkeln 18 und 19. Im mittleren Bereich der Vertiefung ist die Abreißlinie 20 ausgebildet, über die Deckel 3 und Behälter 1 gelenkig miteinander verbunden und voneinander trennbar sind.In figure 5 a detailed sectional view through an unfolded joint is shown. On one side of the container 1 is formed a flat surface lip 13 and on the opposite side of the lid 3 there is a similar flat surface lip 14 . The depression 15 with side legs 18 and 19 runs between the surface projections 13 and 14. The tear-off line 20 is formed in the middle region of the depression, via which the lid 3 and container 1 are connected to one another in an articulated manner and can be separated from one another.

Fig. 6 zeigt das Gelenk 7 in einer Ruhestellung, in der die Verbindungskanten 23 und 24, über die die Flächenansätze 14 bzw. 13 in die Schenkel 19 bzw. 18 übergehen, einander berühren. Abhängig von der Bemaßung der Vertiefung 15 und der Schenkel 18 und 19 ergeben sich unterschiedlichen Aufstellwinkel 22, die vorzugsweise zwischen 30° und 80° liegen. Diese Aufstellwinkel erlauben eine Haltestellung des Deckels 3 gegenüber dem Behälter 1, in der ein Benutzer den Behälter offenhalten kann, um daraus Lebensmittel entnehmen zu können, ohne dass der Deckel manuell in der Haltestellung zu halten ist oder dass der Deckel mehr oder weniger weit umklappt. 6 shows the joint 7 in a rest position in which the connecting edges 23 and 24, via which the surface projections 14 and 13 merge into the legs 19 and 18, touch one another. Depending on the dimensioning of the recess 15 and the legs 18 and 19, there are different installation angles 22, which are preferably between 30° and 80°. These installation angles allow the lid 3 to be in a holding position relative to the container 1, in which a user can hold the container open in order to be able to remove food from it without the lid having to be held in the holding position manually or the lid tipping over to a greater or lesser extent.

Fig. 7 zeigt das Gelenk 7 in einer Stellung, in der der Deckel 3 auf den Behälter 1 aufgesetzt ist. Daraus ist zu entnehmen, dass die Schenkel 18 und 19 sowie die Vertiefung 15 leicht gebogen sind und damit unter Spannung stehen. 7 shows the joint 7 in a position in which the lid 3 is placed on the container 1. From this it can be seen that the legs 18 and 19 and the depression 15 are slightly bent and are therefore under tension.

Fig. 8 zeigt eine Detail-Draufsicht auf das Gelenk, der Vertiefung 15 und der Abreißlinie 20. Die Figur zeigt an der Abreißlinie Mikro-Perforationen 21, die in dieser vergrößerten Darstellung als eine Reihe von Spalten in der Abreißlinie gezeigt sind. Zwischen den Spalten sind nur kleine Verbindungen zwischen den anschließenden Bereichen der Vertiefung 15 ausgebildet, so dass die Verbindungen leicht aufgerissen werden können. Die Spalten können auch als eine Reihe von in einer Lienie angeordneten Mikro-Löchern ausgebildet sein, die so klein sind, dass sie mit bloßem Auge nahezu unsichtbar sind. 8 Figure 12 shows a detail plan view of the hinge, indentation 15 and tear line 20. The figure shows micro-perforations 21 at the tear line, shown in this enlarged view as a series of gaps in the tear line. Between the gaps, only small connections are formed between the adjoining areas of the depression 15, so that the connections can be easily torn open. The gaps can also be formed as a series of micro-holes arranged in a line, so small that they are almost invisible to the naked eye.

In Fig. 9 sind Behälter und Deckel in Gesamtansicht in einer Ruhestellung von etwa 70 ° des Deckels 3 gegenüber dem Behälter 1 dargestellt. Die Verbindungskanten 23 und 24 berühren einander, so dass der Deckel 3 aufgrund seiner Verbindung mit dem Behälter über die Abreißlinie 20 in Ruhestellung steht.In 9 the container and lid are shown in an overall view in a rest position of about 70° of the lid 3 relative to the container 1. The connecting edges 23 and 24 touch one another so that the lid 3 is in the rest position due to its connection to the container via the tear-off line 20 .

Fig. 10 zeigt eine Draufsicht auf einen mit einem Deckel geschlossenen Behälter mit Gelenk 7. Über die Anfassbereiche 5 und 6 lässt sich der Behälter öffnen. 10 shows a plan view of a container with a hinge 7 that is closed with a lid. The container can be opened using the grip areas 5 and 6 .

Fig. 11 zeigt eine Seitenansicht von zwei ineinander gestapelten, mit leicht konisch gestalteten Seitenwänden versehenen Behältern 1 und 2 mit abgeklappten Deckeln 3 und 4, die über Gelenke 7 bzw. 8 miteinander verbunden sind. Auf diese Weise lässt sich eine große Zahl von Behältern platzsparend stapeln. 11 1 shows a side view of two containers 1 and 2 stacked one inside the other, provided with slightly conically designed side walls, with folded-down lids 3 and 4, which are connected to one another via joints 7 and 8, respectively. In this way, a large number of containers can be stacked to save space.

BezugszeichenReference sign

11
Behältercontainer
22
Behältercontainer
33
Deckellid
44
Deckellid
55
Anfassbereichtouch area
66
Anfassbereichtouch area
77
Gelenkjoint
88th
Gelenkjoint
99
Wulstbead
1010
BasisBase
1111
SeitenwandSide wall
1212
Vertiefungdeepening
1313
Flächenansatzsurface approach
1414
Flächenansatzsurface approach
1515
Vertiefungdeepening
1616
Profilierungprofiling
1717
Profilierungprofiling
1818
Schenkelleg
1919
Schenkelleg
2020
Abreißlinietear line
2121
Mikro-Perforationmicro perforation
2222
Aufstellwinkelinstallation angle
2323
Verbindungskanteconnecting edge
2424
Verbindungskanteconnecting edge

Claims (7)

  1. A container (1, 2) for holding foodstuffs, comprising a base (10), a peripheral side wall (11) formed integrally with the base (10) and a lid (3, 4) which can be placed on an upper rim of the side wall (11) and which is connected to the container (1, 2) via a hinge (7, 8) at the rim in such a way that the lid (3, 4) forms the top of the container (1, 2) when the container (1, 2) is in the closed state and can be brought into an open position via the hinge (7, 8) in order to open the container (1, 2), the hinge (7, 8) being designed as a film hinge between the side wall (11) of the container (1, 2) and a rim region of the lid (3, 4) and being provided with a tear-off line (20) at which the lid (3, 4) can be separated manually from the side wall of the container (1, 2),
    characterised in that
    - the hinge (7, 8) is under resilient prestress in a position in which the lid (3, 4) is placed on the upper rim of the container (1, 2),
    - when the container (1, 2) is opened, the lid (3, 4) reaches a rest position with an angle of incidence (22) of 30 - 80 ° with respect to the rim of the container (1, 2)
    - the film joint is formed between a first flat surface projection (13) on the upper rim of the side wall (11) of the container (1, 2) and a second flat surface projection (14) on one side of the lid, the first and second surface projections (13, 14) lying essentially in one plane in a position of the lid (3, 4) folded open by 180° with respect to the rim of the container (1, 2) and running parallel to one another when the container (1, 2) is closed, and
    - the surface projections (13, 14) are connected to one another via a U- or V-shaped depression (15) with a connecting region and two lateral legs (18, 19) between the surface projections (13, 14), the tear-off line (20) being located in the centre of the connecting region.
  2. A container (1, 2) according to claim 1, characterised in that the tear-off line (20) forms a straight line in the film joint which contains a plurality of hole- or slit-shaped microperforations (21) arranged in a row.
  3. A container (1, 2) according to claim 1, characterised in that the rim of the container (1, 2) has a peripheral projecting bead (9) which, when the lid (3, 4) is applied to the rim of the container (1, 2), engages in a depression (12) formed in the lid (3, 4) on the rim side and secures the lid (3, 4) under clamping force.
  4. A container (1, 2) according to claim 1, characterised in that the rim of the container (1, 2) and the lid (3, 4) each contain at least one gripping region (5, 6) which are offset from one another in the circumferential direction of the container.
  5. A container (1, 2) according to claim 1, characterised in that the base (10) of the container (1, 2) has a quadrangular to octagonal rim shape and that the lid (3, 4) contains an upper profiling (16) which corresponds to the rim shape of the base (10), wherein the rim shape of the base (10) engages in the profiling (16) of the lid (3, 4) of a container (1, 2) arranged thereunder in the case of uniform containers (1, 2) stacked one on top of the other.
  6. A container (1, 2) according to claim 5, characterised in that a profiling (16) of the inner side of the lid (3, 4) and the profiling (17) of the rim shape of the base (10) are adapted to each other in such a way that the lid (3, 4) and the base (10) of the container (1, 2) are held together under clamping force when the container is placed on the inner or outer side of a lid (3, 4) separated from the container (1, 2).
  7. A container (1, 2) according to claim 1, characterised in that the cross-section of the side wall (11) of the container (1, 2) is conical, whereby containers (1, 2) stacked on top of one another can be stacked in an interlocking manner when the lids (3, 4) are open.
EP20150273.9A 2019-02-22 2020-01-03 Container for storing food Active EP3699109B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202019101046.0U DE202019101046U1 (en) 2019-02-22 2019-02-22 Container for holding food

Publications (2)

Publication Number Publication Date
EP3699109A1 EP3699109A1 (en) 2020-08-26
EP3699109B1 true EP3699109B1 (en) 2022-11-23

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ID=65817502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20150273.9A Active EP3699109B1 (en) 2019-02-22 2020-01-03 Container for storing food

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Country Link
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DE (1) DE202019101046U1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6572909B1 (en) * 2000-05-03 2003-06-03 De Ster Corporation Container having single-cycle hinge and use thereof
US7246714B2 (en) * 2003-08-15 2007-07-24 Anchor Packaging, Inc. Single point hinge for a container
US8608008B2 (en) * 2010-08-26 2013-12-17 Dart Container Corporation Tamper evident container
US9474420B2 (en) * 2010-08-30 2016-10-25 Dixie Consumer Products Llc Sealable snack container
WO2012118724A1 (en) * 2011-02-28 2012-09-07 Krupa Calvin S Clamshell formed of fiber and methods for making clamshell
US9796511B2 (en) * 2015-06-30 2017-10-24 Anchor Packaging, Inc. Tamper evident plastic food container

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