DE8717437U1 - Folding box with a removal flap that swings out from the front peripheral wall - Google Patents

Abstract

The dispenser box has four peripheral walls (4, 6, 8, 10), a bottom and a lid, it being possible for a removal flap (24) with two lateral boundary tabs (28, 30) of the opening to be swivelled out of the front peripheral wall (4). The boundary tabs (28, 30) of the opening are constructed integrally with a material strip (38) which is bonded to the inside of the removal flap (24). Said material strip is preferably made integrally with the bottom tab (72), which is attached to the front peripheral wall (4), of the bottom, which is constructed as a foldable bonded bottom, and is connected to said bottom tab via a tear-off edge (78). The material strip (38) is then folded, together with the bottom tab (72), in an automatic folding stage onto the inside of the blank and bonded in its position. When the dispenser box is set up from the flat-folded state into the box shape, the bottom tab (72) lifts up from the peripheral wall (4), thus tearing off the tear-off edge (78). <IMAGE>

Description

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The invention relates to a folding box of the type mentioned in the preamble of claim 1»

In such folding boxes, the front wall, a side wall, the back wall and another side wall always adjoin one another in the sequence shown; accordingly, the box blank that has not yet been processed consists of four peripheral walls connected to one another in this sequence via folding edges, whereby this sequence can begin with any of the four peripheral walls mentioned*. An overlapping adhesive tab is generally arranged on the free longitudinal edge of one of the two outer peripheral walls. To form the folding box, for example, first the peripheral wall provided with the overlapping adhesive tab and then the other outer peripheral wall are folded flat onto the box blank, with the outer edge of the latter being glued to the previously glued overlapping adhesive tab. From this flat folded state, the folding box can be unfolded in a known manner, whereby it changes from the flat shape suitable for shipping via a shape with a diamond-shaped outline to the final shape with a rectangular outline.

At the top and bottom edges of the peripheral walls, the bottom and lid flaps are arranged over folding edges. For the bottom, a distinction is made between a plug-in bottom and a folding-adhesive bottom. The plug-in bottom is generally formed after the folding box has been unfolded by inserting the bottom flaps into one another, although this process is hardly automatable. To form the folding-adhesive bottom, the bottom flaps are folded in a special way, as shown in an example.

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Folded and glued in the manner described in more detail, so that a folded base is created which lies in the plane of the flat folding box and is stretched when the folding box is unfolded. The folding base is generally formed at the same time as the folding box and can be easily automated.

The intake flap arranged on the front peripheral wall can be opened like a pouring flap, whereby the two opening limiting tabs form the side walls of this pouring flap on the one hand, and are also designed to guide and limit the opening of this pouring flap, as will be explained in more detail below.

In order to make it as easy as possible for the buyer to use the flat-folded folding boxes, we strive to offer them in a largely finished state so that the buyer himself has to carry out as few steps as possible to create the ready-to-use box. Another aim is to keep the ready-to-ship, flat-folded folding box format as small as possible for a given box size and thus to keep the packaging effort as low as possible.

A folding box of the type mentioned in the preamble of claim 1 is already known, in which the removal flap is formed in one piece with the opening limiting tabs and is connected to a bottom tab (EFKA-DRUCK folding box, version 1). In this folding box, the removal flap, which in size and shape essentially corresponds to the opening to be closed in the front peripheral wall, cannot be punched out of it, since the opening limiting tabs connected to the removal flap would then necessarily have to be cut out of the side peripheral walls. For the entire rubble box consisting of the removal flap and the attached opening limiting tabs,

A separate cutting area must therefore be provided for the flap, and accordingly a pouring opening must be cut out on the front peripheral wall. Overall, this results in a relatively large/unfavorably structured cutting or utility format.

The pouring flap in the known folding box is arranged on a fine base plate connected to the rear peripheral wall. The base of the known folding box is designed as a plug-in base. Since the plug-in base can only be formed by the customer! after the folding box has been unfolded, the pouring flap must also be laboriously brought into its usable shape and position by the user. This process cannot be automated any more than plugging in the base. The known folding box therefore has an extremely low degree of completion in its finished state and an undesirably large cut format*

It is the object of the present invention to create a folding box of the type mentioned in the preamble of claim 1, which, for a given box size, has a cut format that is as small and closed as possible and can be produced with little waste and which, in the hand-finished state, has the greatest possible degree of manufacture that makes use easier for the customer.

This object is achieved according to the invention by the features specified in the characterizing part of claim 1.

The removal flap is punched out directly from the front peripheral wall, so that the removal flap and the removal opening are produced in one operation with one tool. In addition, the removal flap is located inside

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The flap is completed by gluing the strip of material with the opening limiting tabs attached to it, for example via folding edges. After gluing the strip of material on, it is automatically in the intended position for use, so that a very high degree of completion is achieved and the finishing work still to be carried out by the user is minimal.

When folding the box blank into a flat folding box in the manner described above, at least one of the two opening limiting tabs is folded together with a side peripheral wall by 180° flat onto the front peripheral wall. When unfolding the box, this opening limiting tab must be raised by 90° together with the side peripheral wall against which it rests. In order to prevent this opening limiting tab from remaining in a partially raised position and protruding into the interior of the unfolded box, one embodiment of the invention provides that the end of this opening limiting tab, which is on the inside when the removal flap is closed, is secured against being lifted off this peripheral wall by a safety device; this safety device is designed so that it can be released automatically when the removal flap is opened for the first time. This safety feature ensures that the opening limiting tab is taken along by the associated peripheral wall when the folding box is unfolded.

In a preferred embodiment of the invention, it is provided that the secured opening limiting tab is held by engagement between the associated adjacent peripheral wall and an overlapping adhesive tab of the rear peripheral wall glued to it. The gluing area between

The overlapping adhesive tab and the peripheral wall can be interrupted in the area of the engagement of the opening limiting tab, so that it is only held in place by a positive fit. When the removal flap is opened, the inner end of the opening limiting tab is pulled out from under the overlapping adhesive tab, which releases the lock.

In order to be able to produce the box blank in one piece, the material strip is preferably connected in one piece to this blank and is connected to it via a tear edge. It can then be separated if necessary and transferred to the intended position. In a preferred embodiment of the invention, the box blank is produced in one piece with a bottom flap of the front wall and is connected to it via a tear edge. The arrangement can be such that after the bottom flap is folded around its folding edge on the inside of the front peripheral wall, the material strip automatically reaches its exact desired position in which it is to be glued. In this way, precise positioning is possible with simple, known folding devices, so that this process can be automated without difficulty.

In a preferred embodiment of the invention, it is provided that when the base is designed as a folding adhesive base with hinged and glued base flaps of the peripheral walls, which extend to the base when the jacket is unfolded, the material strip is made connected to the bottom flap of the front peripheral wall and can be torn off automatically when the jacket is unfolded for the first time. The material strip is brought into its original position and glued together with the bottom flap of the front peripheral wall, which has to be folded anyway to form a folding adhesive base. It remains connected to this bottom flap as long as the

Folding box retains its flat folded state. The tear edge is designed in such a way that when the folding box is unfolded, i.e. when the bottom flap is pivoted from its position parallel to the front peripheral wall into the bottom plane, the strip of material is separated from this bottom flap.

A folding box according to the invention is manufactured in a sequence of steps with the following process steps:

a) Provision of a blank with peripheral walls, base flaps and lid flaps connected via folded edges, an overlapping adhesive flap and a removal flap with opening limiting flaps;

b) Gluing of individual tabs;

c) Folding the blank into a flat folded box while simultaneously gluing the glued flaps.

It is essential

that the removal flap is punched out of the outline of the front peripheral wall and

that before the process step <*■) a strip of material with opening limiting tabs hanging laterally over folded edges is glued to the inside of the removal flap in such a way that the opening limiting tabs lie flat on the peripheral walls adjacent to the front peripheral wall.

) . The actual removal flap is cut in a way that coincides with the cutting of the blank or in a separate

Operation from the surface of the front peripheral wall

! punches in such a way that it is connected to a fold edge in

Connection remains. The opening limiting tabs are not made as one piece with the removal flap.

J; instead, in a separate process step, a strip of material with opening limiting tabs attached to the side is glued to the inside of the removal flap. This results in

a folding box in which the removal flap is already in its position of use when the folding box is folded flat. When the folding box is unfolded, the opening limiting flaps, together with the associated peripheral side walls, automatically move into their position of use, so that no separate operations relating to the removal flap are required.

If the bottom of the folding box is designed as a so-called folding adhesive bottom, which stretches when the folding box is unfolded,

It is provided that the strip of material is manufactured connected to the bottom flap of the front peripheral wall via a tear-off edge, that the strip of material is glued and that it is simultaneously folded onto the bottom flap of the front peripheral wall and glued to the removal flap. As already explained, this manufacturing process results in a folding box that only needs to be unfolded from the flat folded state, with the strip of material automatically tearing off the bottom flap so that it can stretch into the bottom plane. A folding box manufactured using this process can therefore be unfolded without any further effort.

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since, apart from possibly closing the lid, no operations are required that would require manual intervention.

Several embodiments of the invention are shown in the drawing and described in more detail below. They show:

Fig. 1 shows a perspective view of a folding box in the unfolded state with the removal flap open;

Fig. 2 shows a box blank for producing a folding box according to Fig. 1 with a view of the inside walls;

Fig. 3 the box blank according to Fig. 2 after gluing the parts to be glued and after a first folding process;

Fig. 4 a folding box according to Fig. 1 during unfolding in a view obliquely from below;

Fig. 5 is a view into the folding box according to Fig. 1, which is open at the top, in the direction of arrow IV, whereby the individual peripheral walls with the attached bottom flaps are pulled apart.

The folding box 2 shown in Fig. 1 has a shell which is formed from the front peripheral wall 4, the side peripheral wall 6, the rear peripheral wall 8 and the further side peripheral wall 10. A base closes the lower end face, a lid 14 the upper

* Front side of the folding box 2. The base 12 can be in he^

can be designed as plug-in bases or as folding bases; the lid 14 is generally a plug-in lid with inner lid flaps 16 and an outer lid flap 18. &ngr;.· ¹ ! .:. i ¹ Ts.* i

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A removal opening 22 is formed in the front peripheral wall 4, which can be closed by a removal flap 24 of the same shape and size. The removal flap 24 can be pivoted about a folding edge 26 near the floor between the illustrated opening position and a position lying on the level of the front peripheral wall 4.

Opening limiting tabs 28, 30 are arranged on the side edges of the removal flap 24 and slide against the inner sides of the associated lateral peripheral walls 6 or 10. The opening limiting tabs 28, 30 together with the removal flap 24 form a pouring flap 32 and form its partition walls.

At the inner ends of the opening limiting arms 28, stop lugs 34, 36 are formed, which in the opening position of the pouring flap shown in Fig. 1 rest against the front peripheral wall 4 on the inside and thus limit the opening path of the pouring flap 32.

The opening limiting tabs 28, 30 are formed in one piece with a material strip 38 glued to the inside of the removal flap 24 and are connected to this via folding edges 80, 82, which allow the opening limiting tabs 28, 30 to be folded over by 90° from the plane of the material strip 38.

The material strip 38 with the attached opening limiting tabs 28, 30 can, for example, be manufactured as a separate part and glued onto the flat blank. However, with reference to Figs. 2 to 5, a folding box and a method for manufacturing the same are described which make it possible to manufacture the material strip 38 and the attached opening limiting tabs 28, 30 in a particularly simple manner as one piece with the folding box blank and to process them further.

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The folding box blank or panel 44 shown in Fig. 2 is used to produce a folding box according to Fig. 1. All parts corresponding in the two figures are therefore provided with the same reference numerals. The side peripheral wall 6, the front peripheral wall 4, the side peripheral wall 10 and the rear peripheral wall 8 are connected in an articulated manner via common longitudinal edges 46/48/50 designed as folding edges. The inner lid flaps 16 are connected to the side peripheral walls 6 and 10 via folding edges 52; the outer lid flap is connected to the front peripheral wall 4 via a folding edge 54 and in turn carries the insertion flap 20 via a folding edge 56.

An overlapping adhesive tab 60 is arranged in an articulated manner on the free side edge of the rear peripheral wall 8 via a folding edge 58.

On the lower edges of the side peripheral wall 6, the front peripheral wall 4, the side peripheral wall 10 and the rear peripheral wall 8, base flaps 70, 72, 74 | and 76 are arranged over the articulated folding edges 62, 64, 66 and 68 respectively. The base flaps 70, 72, 74, 76 are designed in such a way that they can form a folding adhesive base, as will be described in more detail below.

The material strip 38 is connected to the bottom flap 72 via a tear-off edge 78, from which the opening limiting flaps 28 and 30 hang via the articulated folding edges 80 and 82, respectively.

Fig. 3 shows the blank 44 according to Fig. 2 after it has passed through a gluing station and a first folding station. The surfaces to be glued together are shown hatched, whereby it can remain open which surface of each pair of surfaces receives the glue application and how

the glue application looks, for example, dot-shaped, strip _- shaped or the like. The dashed hatching means that the lower side of this surface with respect to the drawing plane is glued to the opposite surface; the continuous hatching accordingly means that the upper side of the corresponding surface with respect to the drawing plane represents an adhesive surface. In Fig. 3 it can be seen that the underside of the overlap adhesive tab 60 and the left edge region 61 of the lateral peripheral wall 6 form an adhesive surface pairing. Further adhesive surface pairings form parts of the base tabs 70 and 72 or 74 and 76, as will be described in more detail below. As can be seen in particular from Fig. 2, the base tab 70 consists of a main part and a tab 70a attached to it via a folded edge _71. The base tab 76 consists of a main part and a tab 76a attached to it via a folded edge 77.

I As can be seen from Fig. 3, the bottom flaps 70, 72,

\ 74 or 76 in one operation around the respective folding edges

I 62, 64, 66 or 68 folded and laid flat on the peripheral walls

[ 6, 4, 10 or 8 are placed. At the same time, the

1 bottom flap 70 connected flaps 70a around the fold edge

5 71 folded back so that the upper side in Fig. 2

I of the flap 70a also in the arrangement according to Fig. 3 above

1. In the same way, the bottom flap 7 6

I connected flaps 76a around the folded edge 77

} so that the constellation shown in Fig. 3

I ' of the bottom flaps 70 and 76 with the attached tabs 7Öa

1 or 76a.

I The material strip 38 is attached together with the bottom flap

I folded over so that it is on the inside of the removal

i flap 24. The opening limiting tabs 28 and

I are placed on the associated lateral circumferential

I walls 6 and 10 respectively. The folding edges 80 and 82 are connected to the

1 Fold edges 4 6 or 48 flush. Before folding the bottom

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For example, the side of the material strip 38 which is at the top in Fig. 2 has been glued to the tabs 70, 72/ 74, 76. If the material strip 38 is placed on the inside of the removal flap 24 according to Fig. 3, it is glued to this ^. It goes without saying that the surface of the removal flap 24 which is congruent with the material strip 38 can also be glued.

Before further folding of the blank 44, which assumes the state according to Fig. 3, at least one of the two assigned hatched areas of the flap 70a or the bottom flap 72 on the one hand and of the flap 76a or the bottom flap 74 on the other hand is glued. In a next process step, the rear peripheral wall 8 is folded around the folding edge 50 so that it rests on the side peripheral wall 10 and on part of the front peripheral wall. The side peripheral wall 6 is then folded around the folding edge 46 so that it also rests on the front peripheral wall 4, whereby the adhesive area

is placed on the overlapping adhesive tab 60 and with

\ this is glued together. At the same time, the mutually

■ ordered hatched areas of the flap 7 0a and dt.i"

The bottom flap 72 on the one hand and the flap 76a and the bottom flap 74 on the other hand are glued together. The state of the blank 44 thus achieved corresponds to the flat

\ folded, ready-to-ship box.

As can be seen from a look at Fig. 3, when the side peripheral wall 6 is folded over, the opening limiting tab 28 is also taken along and laid flat on the material strip 38. Since this acts as a stop lug 34 =&igr;&pgr;.&sfgr;&sfgr; -

: formed end of the opening limiting tab 28 protrudes into the adhesive area 61, it is clamped between this adhesive area 61 and the overlapping adhesive tab 60. So that the stop lug 34 does not stick to the peripheral wall 6 or the overlapping adhesive tab 60, the glue is in the

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The area in which the stop lug is clamped is interrupted, as shown in Fig. 3.

Fig. 4 shows a folding box according to Fig. 1 during unfolding from its flat folded state into the box shape. If the folding box 2 is loaded, for example, by an unfolding device in the direction of the arrows P1 and P2, the lateral peripheral walls 6 and 7 are raised from their flat lying position, so that the folding box 2 passes from a state with an approximately diamond-shaped outline into the desired box shape with a rectangular outline. The base flaps 70 and 72, which are glued together, on the one hand, and the base flaps 74 and 76, on the other hand, extend into the base plane and form a closed base, which partially overlaps in multiple layers, with the flap 76a engaging under the part of the base flap 72 closest to it, while the main part of the base flap 76 lies over the part of the base flap 72 closest to it, with additional locking projections 84 and 86, which are formed on the base flap 72 on the one hand and on the base flap 76 on the other hand and which engage with one another when unfolded, providing additional locking of the folding adhesive base.

As can be seen in particular from Fig. 4, when the folding box 2 is unfolded, the bottom flap 72 is lifted off the front peripheral wall 4, on which it was resting until then. Since the material strip 38 is glued to the front peripheral wall, the tear-off edge 78 tears off, so that the unfolding of the bottom flap 72 is not hindered.

Since the opening limiting tab 28 is clamped between the adhesive area 61 of the peripheral wall 6 and the overlapping adhesive tab 60 in the manner described in the figure, it is secured against lifting off the peripheral wall 6 and is therefore taken along into the vertical position of the seaming material strip 38 when the folding box 2 is unfolded. This measure is necessary because by folding the opening limiting tab by 180°, it has a tendency to

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to straighten itself up, possibly gets lost. When the removal flap 24 is opened for the first time, the clamped end 34 automatically releases itself from the described safety device, so that the opening of the removal flap is not hindered.

Fig. 5 shows a view into the folding box which is open at the top, according to arrow IV in Fig. 1. For better clarity, the peripheral walls 4, 6, 8 and 10 are each shown separately from one another, so that the base flaps 72, 70, 76 and 74, which overlap several times when unfolded, are also fully visible. According to the explanation for Fig. 3, dashed hatching means that the side which is lower with respect to the plane of the drawing represents an adhesive surface, while solid hatching indicates that the side which is upper with respect to the plane of the drawing is an adhesive surface. Accordingly, the hatched area of the base flap 74 lies on the tab 76a of the base flap 76 and overlaps with it in the congruent hatched areas. The hatched area of the base flap 72 lies on the hatched area of the tab 70a and overlaps with it in the respective hatched areas. As already explained with reference to Fig. 4, when the box is unfolded - with reference to Fig. 5 - the flap 76a and the bottom flap 74 glued to it grip under the left part of the bottom flap 72, while the right part of the bottom flap 76 grips over the right part of the bottom flap 72 and the bottom flap 70/70a glued to it. The projections 84, 86 clamp together. The overlapping adhesive flap 60, the material strip 38 and the two opening limiting flaps 28, 30 can also be seen in Fig. 5.

It should also be mentioned that the material strip 38 not only serves to hold the opening limiting tabs 28 and 38, but at the same time forms an advantageous reinforcement of the removal flap 24.

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Claims (6)

Protection claims Folding box (2) with a casing consisting of four peripheral walls/ the four peripheral walls (4, 6, 8, 10) of which are connected in a band-like manner are connected in an articulated manner in four longitudinal edges (46, 48, 50, 58) using an overlapping adhesive (60, 61) on one (58) of the longitudinal edges, with a base and with a lid, wherein a front peripheral wall (4) has a removal flap (24) which can be pivoted about a folding edge (26) near the base and has opening limiting tabs (28, 30) which slide against the adjacent peripheral walls (6, 10), characterized in that the removal flap (24) is punched out of the front peripheral wall (4) and that a strip of material (38) is glued to the inside of the removal flap (24)/ the strip of material (38) around which 90° angled sections form the opening limiting tabs (28, 30). · &bull; m f · 14 · · I · t · 2. Folding box according to claim 1 ₇ , characterized in that the inner end (34) of at least one opening limiting tab (28) when the removal flap (24) is closed is secured against lifting off the adjacent peripheral wall (6) before the first opening by a securing device (60) which is automatically released when the box is opened for the first time. 3. Folding box according to claim 2, characterized in that the opening limiting tab (28) is secured which rests on the material strip (38) when the casing is folded flat. 4. Folding box according to claim 2 or 3, characterized in that the secured opening limiting tab (28) is held by engagement between the associated adjacent peripheral wall (6) and an overlapping adhesive tab (60) of the rear peripheral wall (8) glued to it. 5. Folding box according to one of claims 1 to 4, characterized in that the material strip (38) is made in one piece with a bottom flap (72) of the front peripheral wall and is connected to it via a tear edge (78). 6. Folding box according to claim ₅ , characterized in that when the base is designed as a folding adhesive base with hinged and glued base flaps (70, 72, 74, 76) of the peripheral walls (6, 4, 10, 8) which extend to the base when the casing is unfolded, the material strip (38) is produced in a continuous manner with the base flap (72) of the peripheral wall (4) and can be torn off automatically when the casing is unfolded for the first time.