DE202010001585U1 - folding - Google Patents

Abstract

Cardboard folding box with - a rectangular bottom (2), - hinged to the edges of the bottom (2) and foldable with respect to the bottom (2) side walls (3, 4, 5, 6), - on the top edges of two opposite side walls ( 4, 6) hinged and into the opening between the folded side walls (3, 4, 5, 6) foldable dust flaps (19, 20), - hinged to the upper edges of two further opposite side walls (3, 5) and against the in Opening folded dust flaps (19, 20) foldable lid flaps (23, 24), - a protruding tongue (26) on the outer edge of the one lid flap (23), which is removed from the linkage to the side wall (3), and - a plug opening (31) in the other cover flap (24) for receiving the tongue (26) when the cover flaps (23, 24) are folded against the dust flaps (19, 20), characterized in that - at least one cover flap (23) projecting anchoring tongues (29, 30). ..

Description

The invention relates to a carton box with a bottom, side walls, hinged to the upper edges of two side walls dust flaps, hinged to the upper edges of two other side walls lid flaps, a tongue on the outer edge of a lid flap and a plug opening in the other lid flap Recording the tongue.

Such cartons are used in particular for receiving food. They are used, for example, for the transport of prepared food from a catering establishment to a consumer. These may be foodstuffs in solid, solid-liquid or liquid form, so that a liquid-tight design may be required. Furthermore, this may be cold or heated foods, for. Salads or heated pasta dishes. For reasons of hygiene and the prevention of heat loss, the lid must be closed as tightly and safely.

From the US 5,411,204 is a carton of the type mentioned above, in which the one cover flap has a hook-shaped tongue and the other cover flap has an insertion slot. In particular, when filled, this box tends to have larger gaps between the top flaps and the dust flaps underneath, through which impurities can enter and cause increased heat losses.

Based on this, the object of the invention is to provide a folding box which has a sealed, secure and yet easily openable closure.

The object is achieved by a folding box with the features of claim 1.

• – einem rechteckigen Boden,
• – an die Ränder des Bodens angelenkte und bezüglich des Bodens hochfaltbare Seitenwände,
• – an oberen Rändern zweier einander gegenüberliegender Seitenwände angelenkte und in die Öffnung zwischen den hochgefalteten Seitenwänden faltbare Staublaschen,
• – an die oberen Ränder zweier weiterer gegenüberliegender Seitenwände angelenkte und gegen die in die Öffnung gefalteten Staublaschen faltbare Deckelklappen,
• – eine vorstehende Steckzunge an dem von der Anlenkung an die Seitenwand entfernten äußeren Rand der einen Deckelklappe und
• – eine Stecköffnung in der anderen Deckelklappe zur Aufnahme der Steckzunge, wenn die Deckelklappen gegen die Staublaschen gefaltet sind,

dadurch gekennzeichnet, dass

• – mindestens eine Deckelklappe vorstehende Verankerungszungen an den beiden seitlichen Rändern aufweist und
• – Verankerungsöffnungen in den Staublaschen und/oder in den die Staublaschen tragenden Seitenwänden angeordnet sind, in die die Verankerungszungen einsteckbar sind, wenn die Deckelklappen gegen die Staublaschen gefaltet sind.

The cardboard carton according to the invention has

• - a rectangular floor,
• - hinged to the edges of the floor and with respect to the floor hochfaltbare side walls,
• - At the upper edges of two opposing side walls hinged and foldable in the opening between the folded-up side walls dust flaps,
• Hinged on the upper edges of two other opposing side walls and foldable against the folded in the opening dust flaps cover flaps,
• - A protruding tongue on the remote from the articulation to the side wall outer edge of a lid flap and
• An insertion opening in the other cover flap for receiving the insertion tongue when the cover flaps are folded against the dust flaps,

characterized in that

• - Has at least one cover flap protruding anchoring tongues on the two lateral edges and
• - Anchoring openings in the dust flaps and / or in the dust flaps bearing side walls are arranged, in which the anchoring tongues can be inserted when the lid flaps are folded against the dust flaps.

The carton according to the invention has, in addition to the tongue on the one lid flap and this receiving plug opening in the other lid flap further locking elements. These are anchoring tongues on the two lateral edges of at least one cover flap and anchoring openings in the dust flaps and / or in the side walls to which the dust flaps are articulated. The anchoring tongues can be inserted into the anchoring openings. When the anchoring tabs are inserted into the anchoring holes, hold the lid flaps on the dust tabs. This avoids larger gaps between the top flaps and the dust flaps, reduces the risk of food contamination and reduces heat losses. Due to the additional locking elements, the carton is safely closed even under transport conditions. Nevertheless, it is easily targeted by the consumer can be opened by the tongue from the plug opening and in addition the anchoring tongues are pulled out of the anchoring openings in a known manner.

Preferably, the anchoring openings are located in the dust flaps. However, the invention also includes embodiments in which the anchoring openings are located in the side walls that carry the dust flaps. For this purpose, the dust flaps can be recessed in the areas in which the anchoring tongues are inserted into the anchoring openings. But it is also possible that anchoring openings are located both in the dust flaps and in the side walls. The anchoring tongues are then passed through the anchoring openings of the dust flaps and additionally through adjacent anchoring openings in the side walls.

According to one embodiment, the anchoring openings in the dust flaps and / or in the side walls carrying the dust flaps are placed so that the distance between their outer flaps Edges below the distance between the outer ends of the anchoring tongues from each other. The cover flap, which carries the anchoring tongues laterally, can be arched up to insert the anchoring tongues into the anchoring openings and / or the dust flaps or side walls can be arched out for inserting the anchoring tongues. When the anchoring tongues are inserted into the anchoring openings, the carton can be relieved, so that the cover flap or the dust flaps or the side walls resume their previous shape and the anchoring tongues are locked in the anchoring openings. To pull the anchoring tongues out of the anchorage openings, only the outer edge of the cover flap, from which the anchoring tongues protrude laterally, needs to be bent up so that the anchoring tongues are released from the anchoring openings.

According to one embodiment of the invention, the width of the tongue and / or the anchoring tongues decreases towards their outer ends. This facilitates the insertion of the tongue into the insertion opening and / or the anchoring tongues in the anchoring openings.

According to a further embodiment, the tongue is arrow-shaped and / or the anchoring tongues arcuate.

According to one embodiment, the tongue is connected via a narrow tongue portion with the cover flap having the tongue and the narrow tongue portion connected at the end remote from the lid flap with a wide tongue portion. The wide tongue portion allows locking of the tongue in the insertion opening.

For secure locking, the edge of the insertion opening, which is further away from the articulation of the insertion opening having the cover flap, an engagement portion for engaging the narrow tongue portion and at least one less far from the articulation locking portion for engaging behind by the wide tongue portion. In this embodiment, the tongue with its broad tongue portion is inserted into the insertion opening and then with the narrow tongue portion in the engagement area and with the wide tongue portion under the locking area displaced. In this locked position, the tongue is held in place by tensions in the folded carton. In particular, it can be held in the locked position by the stresses acting on the side walls in the hinges of the cover flaps.

According to a further embodiment, the plug-in opening is a plug-in slot. A slot is particularly suitable to prevent the tongue from accidental release from the locking area.

According to a further embodiment, the lid flap having the plug-in slot has two perforation lines emanating from the plug-in slot, the distance of which corresponds to or exceeds the width of the wide tongue portion of the tongue. The perforation lines form a tamper-evident closure, since the tongue can be easily removed from the insertion opening only after tearing open the region of the cover flap arranged between the perforation lines. The perforation lines are formed for example as bridged punched lines.

According to a further embodiment, the anchoring tongues project from the two lateral edges of the cover flap having the tongue. This cover flap is usually folded over the cover flap with the insertion opening. Thus, the tabs fix both lid flaps on the two lateral edges when the lid flaps are folded against the dust flaps.

According to a further embodiment, the two anchoring tongues project into recesses at the outer ends of the lateral edges of a cover flap. As a result, the lid flap can be dimensioned so that it extends, moreover, substantially over the entire distance range between the side walls, to which the dust flaps are articulated. The arrangement of the anchoring tongues in recesses of the cover flap still allows the anchoring tongues to engage in anchoring openings of the dust flaps.

According to a further embodiment, the two lateral edges of the cover flap having no anchoring tongues have further recesses at the outer ends and the anchoring tongues can be inserted through these further recesses into the anchoring openings of the dust flaps when the cover flaps are folded against the dust flaps. It is thereby achieved that the cover flap, which has no anchoring tongues, can, moreover, extend substantially over the entire distance region between the side walls which carry the dust flaps.

According to another embodiment, the lateral edges of the lid flap starting from their articulation to the side wall are inclined towards each other and have the anchoring tongues at a distance from the articulation, preferably at their outer ends. Accordingly, the cover flap having no anchoring tongues preferably also has lateral edges which, starting from the articulation of this cover flap, are inclined towards one another on the side wall. The inclinations of the lateral edges of the cover flaps and the dimensions of the dust flaps are dimensioned so that the opening between the side walls is completely covered. The anchoring tongues can be inserted into anchoring openings of the dust flaps due to the inclination of the lateral edges of the cover flaps.

According to a further embodiment, the anchoring openings are rectangular. As a result, the insertion of the anchoring tongues is facilitated in the anchoring openings.

According to a further embodiment, the side walls are connected at the lateral edges via hinged Eckverbindungslaschen, each having a Eckfaltlinie by which they are divided into two approximately triangular Ecklaschenteile, of which folds a Ecklaschenteil against an adjacent side wall and the other Ecklaschenteil against the Inside of a corner flap part is foldable. The corner flap parts extend to the corners of the floor. The bottom, the side walls and the corner connecting straps form a sealed shell, which can be closed at the top by the lid.

According to a further embodiment, the corner flap parts folded against the side walls are glued to these side walls. As a result, the shell formed by the bottom, side walls and corner flaps is stabilized in the erected form. The Ecklaschenteile but may also have a plug connection with the side walls or be connected in other ways with these.

According to one embodiment, the folding box is made of a one-piece blank made of cardboard.

According to a further embodiment, the folding box is made of cardboard coated on the inside with plastic. This carton is particularly suitable for foods that are liquid or have liquid ingredients. This is especially true in connection with corner connecting straps which seal the corners of the carton.

According to a further embodiment, the cardboard is coated with a layer of polyethylene (PE) or of polyethylene terephthalate (PET). A coating with polyethylene is only limited temperature resistant and is therefore used more for cold food. In contrast, a coating with polyethylene terephthalate has a considerably higher temperature resistance and can therefore also be used for folding cartons, which are used to transport hot food.

According to a further embodiment, the cardboard is a chromium cardboard (GC) or a coated cellulose cardboard (GZ).

The invention will be explained in more detail with reference to the accompanying drawings of an embodiment. In the drawings show:

1 a blank of a carton according to the invention lying flat in plan view;

2 one with the cut of 1 formed carton with lid open in a perspective view;

3 the same carton when closing the lid in a perspective view;

4 the same carton with closed lid in a perspective view.

According to 1 has a cut 1 a rectangular floor 2 on, at its edges hochfaltbar sidewalls 3 . 4 . 5 . 6 are articulated. The side walls 3 . 4 . 5 . 6 are each trapezoidal, extending from their articulation to the ground 2 widen away. In this way, when folded up, they can form an upwardly widening shell.

Every sidewall 3 . 4 . 5 . 6 is at its lateral edges via corner connecting straps 7 . 8th . 9 . 10 with the two adjacent side walls 3 . 4 . 5 . 6 connected. Each corner connecting lug 7 . 8th . 9 . 10 is through a corner fold line 11 . 12 . 13 . 14 , each from a corner of the floor 2 going out, in two congruent triangular corner flap parts 7.1 . 7.2 . 8.1 . 8.2 . 9.1 . 9.2 . 10.1 . 10.2 divided. The corner flap parts 7.2 . 8.2 . 9.2 . 10.2 and the adjacent side walls 4 . 6 each have triangular, congruent adhesive surfaces 15.1 . 15.2 . 16.1 . 16.2 . 17.1 . 17.2 . 18.1 . 18.2 on, in which these corner flap parts with the side walls 4 . 6 be glued when the carton is erected.

To the upper edges of the opposite side walls 4 . 6 are dust flaps 19 . 20 hinged, which are approximately rectangular, with its two outer ends are bevelled. The dust straps 19 . 20 have rectangular anchoring openings 21 . 22 that are symmetrical to the longitudinal axis through the ground 2 are arranged.

To the outer edges of the side walls 3 . 4 are essentially trapezoidal lid flaps 23 . 24 hinged. From the outer edge 25 of the flap 23 there is a tongue in the middle 26 in front. This is over a narrow tongue section 26.1 with the lid flap 23 connected. The narrow tongue section 26.1 is on the top of the lid 23 distant end with a wide tongue section 26.2 connected, whose width to the outer end of the tongue 26 decreases. Overall, the tongue has 26 an arrow-shaped contour.

Furthermore, the lid flap has 23 at the outer ends of the two lateral edges 27 . 28 laterally projecting, arcuate anchoring tongues 29 . 30 , The distance of the lateral edges 27 . 28 from each other decreases with increasing distance from the hinging of the lid flap 23 to the side wall 3 and the outer ends of the anchoring tongues 29 . 30 do not stand over the hinging of the cover flap 23 to the side wall 3 out.

The lid flap 24 has a plug-in opening in the form of a plug-in slot 31 on, parallel to the hinging of the lid flap 24 to the side wall 5 runs. The slot 31 is central to the articulation of this cover flap 24 arranged, but he the outer edge 32 the lid flap 24 is closer than the linkage.

The lid flap 24 has adjacent to the slot 31 on the side of the outer edge 32 a trapezoidal engagement area 33 whose width is about the width of the narrow tongue portion 26.1 equivalent. The intervention area 33 widens slightly towards the outer edge 32 , The outer edges of the slot 31 form locking areas 31.1 . 31.2 , On the other side go from the ends of the slot 31 parallel perforation lines 34.1 . 34.2 off, about centrally in the lid flap 24 end up.

The distance between the two lateral edges 35 . 36 the lid flap 24 decreases with increasing distance from the hinging of the lid flap 24 to the side wall 5 ,

The blank is made of a GC board coated on the inside with PE or of a GZ board coated on the inside with PET.

The cut 1 is erected by the side walls 3 . 4 . 5 . 6 concerning the soil 2 be folded up, with the adjacent corner flap parts 7.1 . 7.2 . 8.1 . 8.2 . 9.1 . 9.2 . 10.1 . 10.2 the corner connecting straps 7 . 8th , 9 . 10 around the corner fold lines 11 . 12 . 13 . 14 folded against each other. The corner flap parts 7.2 . 8.2 . 9.2 . 10.2 be in the adhesive surfaces 15.1 . 16.1 . 17.1 . 18.1 with the adhesive surfaces 15.2 . 16.2 . 17.2 . 18.2 the adjacent side walls 4 . 6 bonded. This will be the bottom 2 , the side walls 3 to 6 and the corner connecting straps 7 to 10 fixed in a stable bowl shape.

That's the carton 37 in 2 shown. In this condition, it can be supplied by the manufacturer nested to the catering business. But it can also be in the form of flat blanks 1 according to 1 supplied to the catering business, in which case the erection of the side walls 3 to 6 and folding and gluing the corner connecting straps 7 to 10 still has to be done.

In the state of 2 The carton can be filled with a ready made dish.

After that, according to 3 the dust straps 19 . 20 in the opening between the side walls 3 . 4 . 5 . 6 folded and the top flaps 23 . 24 folded over it. The lid flap 23 overlaps with its outer edge 25 something the lid flap 24 ,

Then the tongue is 26 in the slot 31 plugged in. Here comes the narrow tongue section 26.1 in the intervention area 33 inside and the broad tongue section 26.2 engages behind the locking areas 31.1 . 31.2 , This is the tongue 26 in the slot 31 locked. In addition, the anchoring tongues 29 . 30 at the side edges 35 . 36 the lid flap 24 past the anchoring openings 21 . 22 inserted and thereby the lid flaps 23 . 24 laterally on the dust straps 19 . 20 anchored.

In this condition is the carton 37 in 4 shown. So it can be delivered to the consumer. This can be the carton 37 open by holding the lid flap 24 between the perforation lines 34.1 . 34.2 tears. After that is the locking tongue 26 easily detachable. By pulling up the outer edge 25 the lid flap 23 the consumer can use the anchoring tongues 29 . 30 from the anchoring openings 21 . 22 pull out. After that he can use the lid flaps 23 . 24 and the dust straps 19 . 20 fold up and remove the food.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 5411204 [0003]

Claims (18)

Cardboard carton with - a rectangular bottom ( 2 ), - to the edges of the soil ( 2 ) and with respect to the soil ( 2 ) foldable side walls ( 3 . 4 . 5 . 6 ), - at upper edges of two opposing side walls ( 4 . 6 ) and in the opening between the folded-up side walls ( 3 . 4 . 5 . 6 ) foldable dust straps ( 19 . 20 ), - at the upper edges of two further opposite side walls ( 3 . 5 ) and against the folded in the opening dust straps ( 19 . 20 ) foldable lid flaps ( 23 . 24 ), - a protruding tongue ( 26 ) at the of the linkage to the side wall ( 3 ) removed outer edge of a lid flap ( 23 ) and - a plug-in opening ( 31 ) in the other lid flap ( 24 ) for receiving the tongue ( 26 ), when the lid flaps ( 23 . 24 ) against the dust straps ( 19 . 20 ) are folded, characterized in that - at least one cover flap ( 23 ) projecting anchoring tongues ( 29 . 30 ) at the two lateral edges ( 27 . 28 ) and - anchoring openings ( 21 . 22 ) in the dust straps ( 19 . 20 ) and / or in which the dust straps ( 19 . 20 ) supporting side walls ( 4 . 6 ) are arranged, in which the anchoring tongues ( 29 . 30 ) can be inserted when the lid flaps ( 23 . 24 ) against the dust straps ( 19 . 20 ) are folded. Folding box according to claim 1, characterized in that the distance of the outer edges of the anchoring openings ( 21 . 22 ) from each other when the dust straps ( 19 . 20 ) in the opening between the side walls ( 3 . 4 . 5 . 6 ) is folded, the distance between the outer ends of the anchoring tongues ( 29 . 30 ) falls below. Folding box according to claim 1 or 2, characterized in that the width of the tongue ( 26 ) and / or the anchoring tongues ( 29 . 30 ) decreases towards its outer end. Folding box according to claim 3, characterized in that the tongue ( 26 ) is arrow-shaped and / or the anchoring tongues are arcuate. Folding box according to one of claims 1 to 4, characterized in that the tongue ( 26 ) over a narrow tongue section ( 26.1 ) with the tongue having the tongue ( 23 ) is connected and the narrow tongue portion of the lid flap ( 23 ) far end with a wide tongue portion ( 26 ) connected is. Folding box according to claim 5, characterized in that the of the articulation of the plug opening ( 31 ) having cover flap ( 24 ) farther edge of the plug opening an engagement area ( 33 ) for engaging the narrow tongue portion ( 26.1 ) and at least one less remote from the linkage locking area ( 31.1 . 31.2 ) for engaging behind by the widened tongue portion ( 26.2 ) having. Folding box according to one of claims 1 to 6, characterized in that the plug-in opening an insertion slot ( 31 ). Folding box according to claim 7, characterized in that the slot ( 31 ) having cover flap ( 24 ) two perforation lines ( 34.1 . 34.2 ) whose distance from each other is about the width of the wide tongue portion ( 26.2 ) of the tongue ( 26 ) or exceeds them. Folding box according to one of claims 1 to 8, characterized in that the anchoring tongues ( 29 . 30 ) from the two lateral edges ( 27 . 28 ) of the tongue ( 26 ) having cover flap ( 23 ) protrude. Folding box according to one of claims 1 to 9, characterized in that the anchoring tongues ( 29 . 30 ) in recesses at the outer ends of the two lateral edges ( 27 . 28 ) a lid flap ( 23 ) protrude. Folding box according to one of claims 1 to 10, characterized in that the two lateral edges ( 35 . 36 ) of the lid flap having no anchoring tongues ( 24 ) at the outer ends further recesses ( 37 . 38 ) and the anchoring tongues ( 29 . 30 ) through these further recesses ( 37 . 38 ) into the anchoring openings ( 21 . 22 ) can be inserted when the lid flaps against the dust flaps ( 19 . 20 ) are folded. Folding box according to one of claims 1 to 11, characterized in that the anchoring openings ( 21 . 22 ) are rectangular. Folding box according to one of claims 1 to 12, characterized in that the side walls ( 3 . 4 . 5 . 6 ) at the lateral edges via hinged corner connecting straps ( 7 . 8th . 9 . 10 ) are connected to each other, each having a Eckfaltlinie by which they are divided into two approximately triangular Ecklaschenteile, of which a Ecklaschenenteil (( 7.2 . 8.2 . 9.2 . 10.2 ) against an adjacent side wall ( 4 . 6 ) foldable and the other corner flap part ( 7.1 . 8.1 . 9.1 . 10.1 ) is foldable against the inside of a corner flap part. Folding box according to claim 13, characterized in that against the side walls ( 4 . 6 ) folded corner flap parts ( 7.2 . 8.2 . 9.2 . 10.2 ) are glued to these side walls. Folding box according to one of claims 1 to 14, characterized in that it consists of a one-piece blank ( 1 ) is made of cardboard. Folding box according to one of claims 1 to 15, characterized in that it is made of a cardboard coated on the inside with plastic. Folding box according to claim 16, characterized in that the cardboard is coated with a layer of polyethylene or of polyethylene terephthalate. Folding box according to one of claims 1 to 17, characterized in that the cardboard is a chromo-cardboard or a coated pulp board.

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