EP1772394A2 - Folding box for shock-protected storage of an elongated article. - Google Patents

Abstract

The box has inner and outer sleeves of rectangular cross section, where the inner sleeve has inner sleeve fields (13-16) that are connected with each other. An adhesive plate (17) is attached to one of the fields, where the plate sticks together with the inner side of one of the inner sleeve fields. Each inner sleeve field has a stamped flange (18) so that the inner sleeve fields are supported at two positions perpendicular to opposite outer sleeve fields (1-4).

Description

The invention relates to a carton for the impact-resistant receiving an elongated, in particular tubular-shaped object.

For a long time folding cartons for packaging electron tubes or special incandescent lamps are known in which a corrugated cardboard tube or a bubble wrap is used as an insert to protect the packaged item against shocks. There are also deposits of four nested cardboard strips are known, which surround in the erected state a matching the cross-section of the object to be packaged, open-ended chamber, wherein this projecting cardboard webs secure a distance to the Faltschachtelwänden. The above-mentioned packaging has in common that the insert represents a separate element, which must first be introduced into the carton during the packaging of the article. The logistics in the delivery of packaging to the packer and the handling of the elements of the packaging do not allow economic work and ensure error-free reproduction.

An improvement provide folding boxes, which consist of an outer shell of rectangular cross section and one with the outer shell integrally formed inner shell for shock-proof recording of the elongated object. Such cartons are used in particular for receiving fragile or otherwise easily damaged by impact objects, such as rod-shaped bulbs, powder pens, glass ampoules, etc.

An advantageous embodiment of such a carton is made DE 296 04 603 U1 known. The carton disclosed therein consists of an outer shell of rectangular cross-section with four interconnected outer shell panels and a first adhesive flap adhered to the fourth outer shell panel and adhered to the inside of the first outer shell panel and an inner shell integrally connected to the outer shell for shock-proof support of the elongate object , The inner shell consists of five interconnected Innenhüllenfeldern and adjoining the fifth Innenhüllenfeld second adhesive flap. The first inner envelope field is thus connected to the first adhesive flap. In addition, the fourth inner shell panel is bonded to the third inner panel panel. Two of the inner shell panels have protruding noses on, which serve to support the outer shell fields, wherein due to the shape of the blank and the arrangement of the adhesive surfaces, the inner shell is arranged obliquely in the interior of the outer shell. The noses are thus also obliquely in the room and are supported on two opposite corners of the outer shell.

However, due to the necessary for a bond width of the adhesive surface of at least 8 mm in such a structure is essential that a considerable volume of the interior of the carton remains unused, since a symmetrical arrangement of the inner shell in the interior of the outer shell a uniform distance from the corners of Outer shell requires and thus the possibilities of saving space are limited due to the oblique arrangement of the inner shell.

The present invention is therefore an object of the invention to provide a carton that safely protects the object received therein against shocks, can be produced in a simple manner and also allows minimization of the size of the carton, which also saves material costs.

This object is solved by the features of claim 1.

It is an essential feature of the invention that the inner shell comprises first to fourth interconnected inner shell panels and a second adhesive flap adjoining the inner shell panel which is bonded to the inner side of the first inner shell panel, and in that each inner shell panel has at least one punched-out tab in that the first to fourth inner sleeve fields are each supported at at least two points perpendicular to the opposite outer sleeve field.

Such an inner sleeve design ensures easy manufacture of the one-piece blank as well as economical erecting of the carton by conventional packaging machines, provides an excellent cushioning effect that completely eliminates or at least mitigates impact from the packaged article, while minimizing the size of the overall package ,

Advantageously, the first adhesive flap has a width which is smaller by approximately the height of the nose than the first outer sleeve field, whereby, on account of the integral connection of outer shell and inner shell, the first adhesive flap thus engages with the inner side of the first outer shell field can be glued, that the first inner casing field in the unfolded state of the carton at a distance from the second outer casing field, which corresponds approximately to the height of the lugs, is supported perpendicular to the first outer casing field, so that a simple and functional transition of outer casing and inner shell is ensured.

It is likewise advantageous for the second adhesive flap to have a width which is less than the height of the noses, than the first inner shell field. This allows the second adhesive tab to be adhered to the inner surface of the first inner envelope panel such that the fourth inner envelope panel extends parallel to the first adhesive tab and the first outer jacket panel, respectively, with the mutual distance corresponding to the height of a tab. In this way, an extremely simple structure in the interior of the carton, which requires a minimum of spacers or noses.

Each lug advantageously protrudes beyond the fold line to the adjacent inner hull panel, and the adjacent inner hull panel has a cutout that surrounds the nose in the unfolded condition of the carton and is substantially C-shaped. As a result, a blank is created which has a simple structure and automatically provides spacers between inner shell and outer shell when erecting due to the folding at the respective fold lines.

In a preferred embodiment, the first inner hull panel has a nose projecting beyond the fold line to the second inner hull panel for support on the third outer hull panel, the fourth inner hull panel has a nose over the fold line to the third inner hull panel for support on the fourth outer hull panel facing the second inner hull panel two tabs projecting beyond the fold line to the first inner shell panel for support on the second outer shell panel; and two tabs projecting beyond the fold line to the third inner shell panel for support on the fourth outer shell panel, and the third inner shell panel has a projection for protruding over the fold line to the second inner shell panel on the third outer casing field and two projections projecting beyond the fold line to the fourth inner casing field for the support on the first adhesive flap and the first outer casing field glued thereon. This structure provides in a simple manner a secure support of each Innenhüllenfelds perpendicular to the opposite Außenhüllenfeld at least two places, which contributes to a particularly high stability and shock absorption.

The noses of the first inner casing field and the third inner casing field protruding beyond the folding lines to the second inner casing field and the nose of the fourth inner casing field projecting beyond the fold line to the third inner casing field are advantageously arranged in the middle region of the inner casing fields, while the remaining lugs are arranged symmetrically offset in the direction of the edge region of the inner casing fields are. As a result, on the one hand, the formation of all lugs within an integral, i. ensures one-piece structure and on the other hand ensures a symmetrical support of the inner shell to the outer shell.

For a protection of the received item also on the bottom and top side of the carton preferably two Schutzfaltlaschen are provided adjacent to the outer end portion of the outer shell fields, the Schutzfalt tabs each consist of four sections which are connected to each other via fold lines. With a suitable bonding of the fourth section to the inside of the associated outer shell field, a structure is thus obtained in a simple manner that automatically unfolds itself when erecting the folding box and thus ensures a shock-proofing of the cover or bottom side.

Fig. 1

zeigt einen Zuschnitt einer erfindungsgemäßen Faltschachtel; und

Fig. 2

zeigt eine vergrößerte schematische Querschnittsansicht einer aus dem Zuschnitt aus Fig. 1 hergestellten erfindungsgemäßen Faltschachtel ohne Deckelklappen.

Further details, features and advantages of the present invention will become apparent from the following description with reference to the accompanying drawings.

Fig. 1

shows a blank of a carton according to the invention; and

Fig. 2

shows an enlarged schematic cross-sectional view of a carton according to the invention produced from the blank of FIG. 1 without cover flaps.

The folding box according to the invention comprises an outer shell and an inner shell integrally connected thereto. The outer shell consists of first to fourth hull fields or outer hull fields 1 to 4, which are arranged one behind the other and are connected to each other via fold lines a to c. Subsequent to the fourth outer shell panel 4, a first adhesive tab 5 is arranged, which is also delimited by the fourth outer shell panel 4 via a fold line d. All outer shell panels 1 to 4 are rectangular, while the first adhesive flap 5 may be formed at their edges extending obliquely inward.

At the outer ends of the first outer shell panel 1 folding flaps 6 are arranged. At the outer ends of the second outer shell panel 2, bottom and top flaps 7 are arranged to close the carton, and at the outer ends of the third outer shell panel 3 are arranged Schutzfaltklappen 8, which consist of first to fourth sections 9 to 12, which are arranged consecutively and connected by fold lines. The fold line arranged between the first section 9 and the second section 10 is referred to below as e.

With the first adhesive tab 5, the inner shell is connected, which consists of first to fourth Innenhüllenfeldern 13 to 16, which define the receiving space A for the object in the unfolded state. The inner shell panels 13 to 16 are just like the outer shell panels 1 to 4 are rectangular, but have a relation to the Außenhüllenfeldern reduced width and length, the first inner shell panel 13 is designed slightly wider than the other three inner shell panels 14 to 16. In the present example, the Outer hull fields 1 to 4 approx. 109 mm long (length L1) and approx. 21 mm wide (width B1), the inner hull fields 14 to 16 are approx. 83 mm long (length L2) and approx. 14 mm wide (width B2), and the inner liner panel 13 is also about 83 mm long and about 17 mm wide (width B3).

The connection between all segments is again via fold lines, wherein the fold line between the first adhesive flap 5 and the first inner envelope panel 13 is marked with f, while the other fold lines are given the reference symbols g to i. Subsequent to the fourth inner sleeve field 16, a second adhesive flap 17 is arranged via a fold line j. The second adhesive tab 17 is designed in the same way as the first adhesive tab 5, wherein it has smaller dimensions. The first adhesive flap has a width B4 of about 18 mm, while the second adhesive flap 5 only has a width B5 of about 11 mm.

The above dimensions are not to be construed as limiting, since the invention can be applied to almost any size. Although the illustrated in the example first to fourth outer shell panels 1 to 4 have the same shape, resulting in an elongated carton having a square cross-section of the outer shell, but for a person skilled in all possible other size ratios are conceivable, for example, to a rectangular cross-section lead the outer shell of the carton. According to the invention, however, then the dimensions of the inner shell, ie the first to fourth inner shell fields 13 to 16 and the second adhesive flap 17 be adjusted accordingly.

In any case, it is important that the first adhesive tab 5 has a smaller width than the first outer envelope panel 1, with which it is glued, and that the second adhesive tab 17 has a smaller width than the first inner envelope panel 13. The reason for this will be below specified in more detail.

Noses 18 are formed in the first to fourth inner shell panels 13 to 16, projecting beyond the respective fold line to the adjacent inner shell panel, and the respective adjacent inner shell panel has a punched-out 19, which in the unfolded state of the folding box (see FIG. 1) Nose 18 surrounds and is substantially C-shaped. Specifically, in the preferred embodiment, the lugs 18 and the punched-19 are respectively arranged such that when folding the inner sleeve panels 13 to 16 at the fold line g to i, ie when erecting the carton, automatically the nose 18 parallel to the associated inner envelope field and over which extends with the corresponding punched 19 Innenhüllenfeld out extends. The noses according to the present example have a height H of about 3 mm. Specifically, the tabs 18 in this embodiment are arranged as follows:
The first inner shell panel 13 has a nose 18 projecting beyond the fold line g to the second inner shell panel 14, the second inner shell panel 14 has two tabs 18 projecting beyond the fold line g to the first inner panel panel 13 and two tabs 18 projecting beyond the fold line h to the third inner shell panel 15 , The third inner shell panel 15 has a nose 18 projecting beyond the fold line h to the second inner shell panel 14, and two tabs 18 projecting beyond the fold line i to the fourth inner shell panel 16. Finally, the fourth inner shell panel 16 has a nose 18 projecting beyond the fold line i to the third inner shell panel 15. The noses 18 of the first inner casing field 13 and the third inner casing field 15 projecting beyond the folding lines g and h to the second inner casing field 14 and the nose 18 of the fourth inner casing field 16 protruding beyond the fold line i to the third inner casing field 15 are in the middle region of the inner casing fields 13, 15 and 16 are arranged, while the remaining lugs 18 are arranged offset symmetrically in the direction of the edge region of the inner shell panels 14 and 15. The same applies to the respective punched holes 19 in the adjacent inner sleeve field 13 to 16. Of course, other arrangements are possible in addition to the illustrated arrangement of the lugs. It should, however, be ensured that, with cartons erected, each inner hull box 13 to 16 at least two locations on the inner surface of the opposite outer shell panel 1 to 4 is supported.

The basic material for all elements of the carton is usually conventional cardboard which may be printed, varnished or laminated with foil. But it can also be used all other materials that are suitable for producing a shock-absorbing carton.

The carton according to the present invention is made up as follows:
First, the protective folding flaps 8 are folded around the folding line g inwardly such that the first section 9 and the second section 10 come to rest with their inner surfaces and the third and fourth sections 11 and 12 at least partially on the inner surface of the third outer cover panel 3 come lie. The fourth section 12 is fastened there by gluing.

Then, the second adhesive tab 17 is folded at the fold line j in the direction of the inside of the fourth inner sleeve panel 16 until it is flat on this. Subsequently, the inner sleeve fields 15 and 16 and the adhesive flap 17 are folded over at the fold line h in turn, wherein the adhesive flap 17 is bonded at least in some places with the first inner cover panel 13. Due to the identical dimensions of the inner shell panels 14 to 16 and the contrast, slightly larger width of the first inner shell panel 13 remains at the edge of the fold line f on the first inner shell panel 13, an uncovered portion whose width corresponds approximately to the height H of a nose 18.

Then, the entire inner shell at the fold line f is in turn turned inside and thus covers the inner surfaces of the third and fourth Außenhüllenfeldes 4 and 5. Now the outer shell fields 4 and 5 are folded together with the already folded inner shell to the fold line c inside and then the first outer shell panel 1 folded around the fold line a with its inner surface on the first adhesive flap 5 and glued there. The first outer shell panel 1 is glued to the adhesive flap 5, that on its inner surface in the direction of the fold line a still a certain free portion remains, which has a width which in turn corresponds approximately to the height H of the lugs 18.

In the flat state, the carton can then be delivered to the packer.

There, the outer shell is erected, with automatically upright, the inner shell with. Subsequently, the bottom or the lid of the carton is closed by folding the folding flaps 6 and the protective folding flaps 8 and then folding and inserting the two-part bottom or top flaps 7. When folding the protective folding flaps 8, these are also unfolded due to the bonding of the fourth portion 12 with the inner surface of the third outer shell panel 3, so that the second section 10 is parallel to the outer shell panel 3 and the third section 11 parallel to the folded-in first section 9. This becomes the bottom or cover side ensures shock absorption.

In Fig. 2, the unfolded carton is shown in a schematic cross-sectional view. The inner shell defines the receiving area A of the carton. It can be clearly seen that the inner shell has substantially the same shape as the outer shell, but with a smaller cross-section, and that the lugs 18 each act as spacers, which are supported perpendicular to the Außenhüllenfeldern 1 to 4. Due to the approximately to the height H of the lugs 18 different width between the first adhesive tab 5 and the first outer shell panel 1 and between the second adhesive tab 17 and the first inner shell panel 13 replaces the vertical connection of the first inner shell panel 13 with the first outer shell panel 1 and Connecting the fourth inner shell panel 16 with the first inner shell panel 13 respectively the need for spacers at this point. From this view, it is also clear that over the fold line g protruding nose 18 of the first inner shell panel 13 is supported on the third outer shell panel 3, that over the fold line i projecting nose 18 of the fourth inner shell panel 16 is supported on the fourth outer shell panel 4 that the both above the fold line g protruding lugs 18 of the second inner shell panel 14 are supported on the second outer shell panel 2, that support the two above the fold line h protruding lugs 18 of the second inner shell panel 14 on the fourth outer shell panel 4 that over the fold line h protruding nose 18 of third inner shell panel 15 is supported on the third outer shell panel 3 and that the two above the folding line i protruding lugs 18 of the third inner shell panel 15 are supported on the first adhesive tab 5 and the first outer shell panel 1 bonded thereto.

It is also recognizable that the need for an approximately 8 mm wide area for bonding the adhesive tabs 5 and 17 with the first outer panel 1 and the first inner panel 13 provides the only restriction regarding the minimization of the carton, while the lugs 18 can be dimensioned arbitrarily small and thus the distance H between the inner shell and outer shell of the carton to the respective needs aligned and can also be minimized.

Thus, a simple, consisting of a one-piece blank carton has been created that can be erected with conventional packaging machines, provides safe and reliable shock absorption to all sides and the outer dimensions compared to the usable interior are only minimally increased, which in addition to logistical advantages, a Material cost savings results.

Claims (10)

Folding box for receiving an elongate article, having an outer shell of rectangular cross section of first to fourth interconnected outer shell panels (1, 2, 3, 4), of a to the fourth outer shell panel (4) adjoining the first adhesive flap (5) connected to the Inner side of the first outer shell panel (1) is glued, and from folding flaps (6, 7, 8) at corresponding ends of the outer shell fields (1, 2, 3, 4) to form a bottom closure and a lid closure, as well as integrally formed with the outer shell Inner shell of rectangular cross section comprising a plurality of inner shell panels (13, 14, 15, 16) for impact-resistant reception of the elongate article in the folding box, wherein the inner shell in the region of at least one fold line (g, h, i) between two adjacent inner shell fields (13, 14, 15, 16) has a punched nose (18) for support on the outer shell,
characterized in that
the inner shell comprises first to fourth interconnected inner shell panels (13, 14, 15, 16) and a second adhesive flap (17) adjoining the fourth inner shell panel (16) adhered to the inner side of the first inner shell panel (13), and each inner shell panel (13, 14, 15, 16) has at least one punched-out tab (18), so that the first to fourth inner panel panels (13, 14, 15, 16) are in each case at least two locations perpendicular to the opposite outer shell panel (1, 2, 3, 4) are supported. Folding box for receiving an elongated object according to claim 1, characterized in that the first adhesive flap (5) has a width which is approximately smaller than the height (H) of the tabs (18) than the first outer shell panel (1). Folding box for receiving an elongate object according to claim 1 or 2, characterized in that the second adhesive flap (17) has a width about the height (H) of the tabs (18) smaller width than the first inner envelope panel (13). Folding box for receiving an elongated object according to one of the preceding claims, characterized in that each lug (18) over the Fold line (g, h, i) to the adjacent inner envelope panel (13,14,15,16) protrudes out, and the adjacent inner envelope panel (13, 14, 15, 16) has a punched (19), which in the unfolded state of the carton the nose (18) surrounds and is substantially C-shaped. Folded box for receiving an elongated object according to one of the preceding claims, characterized in that the first inner sleeve panel (13) has a nose (18) projecting beyond the fold line (g) to the second inner sleeve panel (14) for support on the third outer sleeve panel (3). having. Folding box for receiving an elongated object according to one of the preceding claims, characterized in that the fourth inner sleeve panel (17) has a nose (18) projecting beyond the fold line (i) to the third inner sleeve panel (16) for support on the fourth outer sleeve panel (4). having. Folding box for receiving an elongate object according to one of the preceding claims, characterized in that the second inner sleeve panel (14) has two lugs (18) projecting beyond the folding line (g) to the first inner sleeve panel (13) for support on the second outer sleeve panel (2). and two on the fold line (h) to the third inner shell panel (15) projecting lugs (18) for support on the fourth outer shell panel (4). Folding box for receiving an elongate object according to one of the preceding claims, characterized in that the third inner sleeve panel (15) has a nose (18) projecting beyond the fold line (h) to the second inner sleeve panel (14) for support on the third outer sleeve panel (3). and two projections (18) projecting beyond the fold line (i) to the fourth inner envelope panel (16) for support on the first adhesive tab (5) and the first outer envelope panel (1) bonded thereto. Folding box for receiving an elongated object according to one of the preceding claims, characterized in that the projections (18,) of the first inner casing panel (13) and the third inner casing panel (15) projecting beyond the fold lines (g, h) to the second inner casing panel (14) as well as on the fold line (i) to the third inner shell panel (15) projecting nose (18) of the fourth inner shell panel (16) are arranged in the middle region of the inner shell fields (13, 15, 16), while the remaining lugs (18) are arranged offset symmetrically in the direction of the edge region of the inner shell fields (14, 15, 16). Folding box for receiving an elongated article according to one of the preceding claims, characterized in that it comprises two protective folding tabs (8) adjacent to the outer end portion of one of the outer sleeve panels (1, 2, 3, 4), the protective folding tabs (8) respectively four sections (9, 10, 11, 12) connected to each other by fold lines (e).

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