DE3938297C2 - - Google Patents

Description

The invention relates to a folding box from a one-piece cut or folding box with top and Lower part, the bottom of the box or box made of two longitudinal side walls and each connected by fold lines two transverse side walls and an adhesive flap hinged to them exists and bottom flaps are hinged to the side walls, which are on the opposite longitudinal side walls at Fold over at least partially and cover them Floor flaps are attached to at least two cushion elements, which are partially inside and outside the box or the Extend the box.

The bottoms of folding boxes or folding boxes are so far usually closed by folding the bottom flaps and fixed with adhesive tapes. This is under the folding box one-piece cardboard to understand, while under folding box the two-part boxes with top and bottom part are to be understood, which are also often referred to as telescopic folding boxes.

A folding box is known from US-PS 29 67 009, which already with cushion elements protruding into the inside of the box is equipped. The tabbed ones are used Upholstery elements in slots in a bottom flap of the folding box inserted and fixed by turning the tabs. The cushion element now located inside the folding box takes over the protective functions for the corresponding  Packaged goods.

The invention has for its object folding boxes and - equip crates so that they are besides a padding and Shock protection for sensitive goods, such as Glass panes can also be easily transported with forklifts can be. Furthermore, the assembly of the Folding boxes or boxes are simplified.

This object is achieved according to the invention for a folding box or Folding box of the generic type solved in such a way that the Bottom flaps have cutouts, and the upholstery elements from two parts connected by a retaining bridge exist, the retaining web compared to the parts has a reduced cross section, which is the cross section of the Corresponding recesses in the bottom flaps. According to the invention Upholstery element also the closure element for the Bottom flaps of the folding box or the folding box. Furthermore can the cushion element according to the invention in that it both inside and outside the box or box extends, perform several functions, namely on the one hand there are cushioning tasks within the carton or box take over and on the other hand it forms outside the box or the box not only a cushioning pad, but at the same time another stacking and transport aid. Between those from the Cardboard or the box of protruding upholstery parts is created namely a free space in which the wings of a Forklift or the like can retract. The Configuration of the cushion element according to the invention and its Assignment to the bottom of a folding box or folding boxes can for the part protruding from the box or box, the is expediently to be referred to as a plinth, to be a cuboid while inside the box or box itself extending part of the cushion element corresponding to the packaging goods can be configured very differently can. In the simplest case, it forms inside the box or the crate extending part of the cushion element simple holding plate that lies flat on the floor and  just a cushioning support down there. In Further development of the invention, however, is in the box or Box protruding part of the cushion element as an additional Packaging padding especially for easily fragile goods, such as glass panes or the like, as protruding from a fork formed at least two cushion arms. These cushion arms can be of the same or different lengths, they can be smooth or profiled, in particular they form between them a U-shaped, preferably profiled receiving groove for the goods to be packed accordingly, the upholstery there can be clamped.

Advantageous configurations of the packaging in the form of folding boxes or boxes with the Upholstery elements are the other Removable claims.

The cushion elements are preferably also made of one shock-elastic predominantly closed-cell foam produced. Such foams are, for example predominantly closed-cell networked Polyolefin foams, for example chemically cross-linked Polyolefin foams based on polyethylene. Especially suitable foams are those with very small closed cells, for example as block foams getting produced. Such foams, the properties according to the characterizing features of claim 16 - measured according to DIN-ISO 7214 - are also particularly suitable for the break-proof packaging of glass and its dispatch.

Upholstery elements made of foam can different processes can be manufactured. A possibility consists of either foaming the upholstery elements directly or via the intermediate stage of pre-expanded Foam particles. With most of these molded foam processes however, become open-celled or predominantly open-celled Foams made, their resilience and flexibility  not always the highest requirements, such as is necessary when sending glass. In particular it is also a concern of the invention to be a cushioning Packaging for folding boxes and boxes to create with the smallest possible volume of cushioning elements to save costs on the one hand and space on the other save up.

Another way of producing the upholstery elements consists of punching or sawing out of prefabricated ones Foam sheets or sheets in complementary assignment without waste. The complementary punching of the upholstery elements from a block without waste has its limits, however, where the Design of the  Upholstery elements in the complementary allocation of free spaces - Waste rooms - forms. In this case it is provided that the Free spaces between complementary punching Upholstery elements at the same time in a complementary way Intermediate cushion strips are punched out as additional Upholstery parts for packaging in folding boxes and crates can be used.

The invention is described below using exemplary embodiments explained in more detail in the drawing. It shows

FIG. 1 shows an upper part of a folding box in processing;

Figure 2 is a lower part of a folding box in development.

Figures 3, 4 the front and side view of a packed folding box.

FIGS. 5a-f show various views of a cushioning member;

Fig. 6 is perspective view of another cushion member having two pad arms;

Fig 7a-c show three views of a cushion member with two pad arms.

Fig. 8 is a perspective view of a plate made of foam;

Fig. 9 is perspective view of a punched plate according to cushion elements Fig. 8;

FIG. 10 is views of a further cushion member having a pad arms;

11, 12 two views of intermediate cushion strips ;

FIG. 13 is plan view of a punching unit of cushion elements with intermediate strip of dunnage;

Fig. 14a-c equipping the lower part of a folding box with upholstery elements.

Conventional folding boxes or Folding cartons can be equipped with upholstery elements, one unbreakable packaging of sensitive fragile goods allow in the folding boxes or cartons. This packaging should be easy to manufacture, it should be inexpensive be and of high quality.

In Figs. 1 and 2, the upper part and the lower part of a telescopic folding box are presented in processing. The upper part 200 has in a conventional manner the long sides 201 , 202 , the end faces 203 , 204 and lateral protrusion 206 , which are connected to one another by folded edges 205 . The cover flaps 208 to 211 are formed on one side over folding edges 207 , leaving movement slots 212 on the long sides and end faces. Usually, the lower part of the folding box is designed analogously to the upper part, but with somewhat smaller dimensions, so that the upper part can easily be pushed over the lower part. For the equipment of the lower part of the folding box or the bottom area of the folding box, the lower part 100 according to FIG. 2 is structured further in the area of the bottom flaps. The lower part also has the long sides 101 , 102 , the end faces 103 , 104 and the lateral protrusion 106 , which are connected to one another via folded edges 105 and can be closed to form a box. One of the bottom flaps 108 , which adjoins a longitudinal side 101 via the folding edge 107 , is formed with two recesses 114 which reach the folding edge up to the distance f and which are arranged symmetrically to one another. The recesses 114 have a width c. On the input side, they are possibly expanded by additional bevels 115 . Between the recesses 114 and the closest folding edge 105 in the transition to the end faces, there remains a bottom flap part 108 b or 108 c, each having a width a and a length d, which corresponds to the width d of the end faces 103 and 104 . The bottom flap part 108 a remaining between the two recesses 114 has a width b with a length d. A bottom flap 110 with the dimensions of the flap part 108 a with respect to length and width is formed in the center on the second longitudinal side 102 of the lower part 100 , which can also be designed with bevels 119 at the corners. Between the bottom flap 110 and the adjacent end faces 103 and 104 , there is a recess 113 each of a width a + c. The bottom flaps 109 and 111 adjoining the end faces 103 and 104 are shortened in their length, which should actually correspond to the width d of the end faces, by the amount c, ie the width of the cutouts 114 , and only have the length a. When the lower part 100 is folded up, the flaps 109 and 111, respectively, then leave the cutouts 114 on the bottom flap 108 free. The bottom flap 110 covers the area of the bottom flap 108 a.

A cushion element 5 in the simple configuration is shown by way of example in FIGS. 5a to 5f. Here, Fig 5a shows the front view, 5b 5c 5d 5f shows. Fig. Is a side view, the Fig., The rear view, the Fig., The bottom view and the Fig. The plan view of the cushion member 5. The cushion element 5 has two parts 53 and 55 which are integrally connected to one another via the holding web 54 and which protrude beyond the holding web in at least one length along two parallel sides, the grooves 52 a, 52 b, 52 c in the example shown on three Pages are formed all around. Only a shoulder 52d is formed on the fourth side. The part 55 which later protrudes from the folding box and is also referred to as a base has an open groove 50 which runs through the center on the underside. The projecting into the folding box part of the cushion member 5 is formed as a holding plate 55 in the example shown. The circumferential or at least partially circumferential groove 52 between the base 53 and the holding plate 55 of the cushion element 5 has a height h which corresponds approximately to twice the thickness of the carton or the wall thickness of the folding box or cartons. It is thus possible to insert two layers of cardboard, ie two bottom flaps one above the other, into this groove 52 and thus to fix them in these grooves. The depth g of the groove 52 can correspond to the distance f according to FIG. 2. The length dp of the cushion element should not be greater than the width d of the end faces 103 , 104 of the lower part 100 of the folding box. The width c of the web 54 corresponds to the width c of the cutouts 114 of the lower part 100 . The height of the cushion element 5 or of the base 53 and the support plate 55 can be chosen as desired according to the functions. The length k of the holding plate 55 of the cushion element must in no case be greater than the width d of the end faces 103 or 104 minus the wall thicknesses of the lower part, so that the plate 54 can be inserted into the folding box. K is preferably smaller than d. The width e of the cushion element is preferably the same over the entire extent of the cushion element.

In FIG. 6, a cushion member 5 is shown, which is formed in extension of the plate 55 with the profiled pad arms 56, 57. The cushion arms 56 , 57 form with the plate 55 a receiving groove 58 into which goods to be packaged, such as glass panes, can be placed. The cushion arms 56 , 57 can be spread apart and also compressed, they have a good cushioning effect with high shock absorption. The cushion arms 56 , 57 can, as shown, be profiled in the same direction or in opposite directions, they can also be profiled in the longitudinal direction, they can also be profiled uniformly over the surface or also smooth. The arms 56 , 57 can also be of different lengths. A preferred profiling is the wavy shape of the cushion arms when viewed in cross section.

In FIGS. 14a to 14c, the equipment of a folding crate is shown schematically with upholstery elements. According to FIG. 14 a, the lower part 100 of a folding box according to FIG. 2 is assembled, the bottom flaps 109 , 111 , 108 and 110 still being open. Now, in the two recesses 114.1 and 114.2 per a cushion member 5, as illustrated schematically, inserted in the direction of arrow P 1 with the web 54 until it abuts against the end of the groove. Only one cushion element is shown. The bottom flap 108 is then folded over the folding edge 107 , the arms 56 , 57 with the holding plate 55 of the cushion element being folded into the lower part of the folding box. As can be seen from FIG. 14 b, the flaps 109 and 111 of the end faces are then folded over and their ends inserted into the grooves 52 formed next to the holding web 54 . Likewise, the remaining flap 110 of the second long side is folded over in the direction of the arrow and its lateral edges are inserted into the grooves 52 next to the retaining web 54 of the cushion elements 5 . The bottom flaps 110 , 111 , 109 and 108 are now clamped in the grooves 52 between the base part 53 and the plate 54 and thus the bottom of the folding box is fixed. The base parts 53 of the upholstery elements 5 protrude outwards beyond the floor and serve as stand-up feet, upholstery feet, which also have a pallet function. The padded feet or base 53 create a free space below the folding box (ground clearance), so that forklifts can retract with the forks and move the folding box away.

In FIG. 14c shows how the bottom flaps 109, 110, 111 engage the side grooves 52 of the cushion member 5 and retained. Since the cushion elements 5 consist of elastic materials, in particular foams, it is no problem to insert the bottom flaps into the grooves 52 without damage. The grooves 52 can be dimensioned such that a clamping effect is exerted on the bottom flaps.

In FIGS. 3 and 4 is shown in front and side view of a ready-packed folding box 1 with the lower part 100 and upper member 200. The folding box 100 is equipped with cushion elements 5 according to FIG. 14c and now stands on the cushion feet on a surface. In the lower part of the folding box 100 , packaging goods 2 , for example one or more glass panes, are inserted into the grooves of the cushion arms 56 . The packaged goods 2 are pressed and held together in a spring-like manner between the two cushion arms 56 , 57 of the cushion elements. The packaging material 2 can be covered on the upper side with further cushion parts 4 . The upper part 200 of the folding box is slipped over it telescopically. The folding box is then closed by means of packing tapes 3 which are guided through the grooves 50 of the cushion elements, ie the base of the cushion elements. This packaging is space-saving, simple and quick to manufacture and has the advantages already explained, which enable the rational packaging and shipping of fragile goods in an economical manner. Instead of the telescopic folding boxes with lower part 100 and upper part 200 , folding boxes can also be equipped with cushioning elements, provided that the bottom flaps, as shown in FIG. 2, are equipped with corresponding receiving slots for the cushioning elements.

The cushioning effect of the upholstery elements is promoted by an appropriate design of the upholstery arms. An advantageous production of cushion elements, for example according to FIG. 6, is explained with reference to FIGS. 8, 9, 13. Such upholstery elements made of high-quality closed-cell and crosslinked foams are produced, for example, from raw blocks made of corresponding foams, for example in the form of a plate according to FIG. 8. The plates 6 have a width m, a height n and a length r as desired. As can be seen from FIG. 9, the cushion elements 5 are punched out of the plate in a complementary association with one another. Here, the height n of the plate 6 corresponds to the width e of a cushion element. The cushion elements 5 (1) and 5 (2) with their arms 56 (1), 56 (2) and 57 (1), 57 (2) are each inserted into one another - complementarily - by punching out in the desired configuration, here an approximate waveform , produced. In this way there is no waste. The grooves 52 between the base parts and plates and upholstery arms of the upholstery elements, which delimit the web 54 , are produced, for example, by milling corresponding grooves running in the longitudinal extent of the plates. The bottom groove is also created by cutting. At the transition to the next pair of upholstery elements 5 (3) and 5 (4) which are to be manufactured in a complementary manner, depending on the configuration, a waste strip 7 may be produced, which can, however, also be used as an intermediate cushion strip in the packaging, for example as a cushion part 4 , see FIG. 3 and 4th

FIGS. 7a to 7c show a cushion element 5 with two cushion arms 56 , 57 , which was produced, for example, from a block according to FIG. 9 by the method. The cushion arms 56 , 57 in wave form can be moved as desired in the direction of arrow P due to their elasticity. The pad arms 56, 57 are formed not of equal length, because, to obtain a groove between successive cushion elements in the region of the retaining webs, an additional area 56 a mitausgestanzt and is integrally formed on one of the arms 56th This way, unnecessary waste is avoided.

FIG. 10 shows a further upholstery element, which differs from the upholstery element according to FIG. 7a by the different length dp of the upholstery elements and base and the greater spacing of the upholstery arms 56 , 57 from one another. In the production of padded elements of FIG. 10 additional waste strips fall according as intermediate padding strips 7 Fig. 11 and 12 from the spacing area between the two pad arms 56, 57 at.

FIG. 12 shows an intermediate padding strip 7 a, as can occur at the transition of two successive padding elements when cutting or punching out a block according to FIG. 9.

FIG. 13 shows a diagram for the implementation of a die cut for the manufacture of cushion elements 5 according to FIG. 10 from a plate with additional intermediate cushion strips 7 , 7 a in a complementary arrangement of the cushion elements.

It is also possible to produce any other suitable configuration of upholstery elements and, if necessary, also to punch them out of sheet material with and without arms, depending on the need and the goods to be packaged. It is also possible to produce cushion elements which, starting from a cushion element according to FIG. 11, have three arms arranged next to one another and thus form two receiving grooves.

For all those cases in which no large lateral upholstery is required in the folding boxes or cartons, but only the pallet function and closing function of the upholstery elements including floor upholstery is desired, simple upholstery elements, for example as described in FIGS. 5a to 5f, can be used .

Claims (16)

1.Folding carton from a one-piece blank or folding box with upper and lower part, the bottom of the carton or box consisting of two longitudinal side walls and two transverse side walls connected by folding lines and an adhesive flap articulated thereon and bottom flaps articulated on the side walls at least partially overlap on the opposite longitudinal side walls when folded down and at least two cushion elements are attached to these bottom flaps, some of which extend inside and outside of the carton or box, characterized in that the bottom flaps ( 108 a-c, 109-111 ) have recesses ( 114, 113), and the cushioning elements (5) consists of two interconnected by a holding web (54) parts (55, 53), wherein the holding web (54) opposite the parts (55, 53) has a reduced cross-section which corresponds to the cross section of the recesses ( 114 ) of the bottom flaps ( 108 a-c). 2. A folding box or box according to claim 1, characterized in that the cushion elements ( 5 ) are detachably connected to one of the bottom flaps ( 108 a-c) adjoining a long side of the box or box and all bottom flaps ( 108 a-c, 109- 111 ) in the closed position to the floor. 3. A folding box or box according to claim 1, characterized in that the recesses ( 114 ) of the bottom flap ( 108 ) have a width (c) corresponding to the width (c) of the retaining web ( 54 ) of the cushion elements ( 5 ) and through on the input side additional bevels ( 115 ) have been expanded. 4. Folding box or box according to one of claims 1 to 3, characterized in that a bottom flap ( 110 ) with the dimensions of the between the recesses ( 114 ) of the bottom flaps ( 108 ac.) On the second longitudinal side 102 of the box or box ) remaining flap part ( 108 a) is formed with respect to length and width and between the bottom flap ( 110 ) and the end faces ( 103, 104 ) of the carton or box, respectively, the recess ( 113 ) remains and those adjoining these end faces ( 103, 104 ) Bottom flaps ( 109, 111 ) are shortened in their length (d) by the amount (c), ie the width of the cutouts ( 114 ) to the length (a). 5. Folding box or box according to one of claims 1 to 4, characterized in that the part ( 53 ) of the cushion element ( 5 ) protruding from the box or box has on the underside a centrally running open groove ( 50 ) for packing tapes ( 3 ). having. 6. Folding box or box according to one of claims 1 to 5, characterized in that the retaining web ( 54 ) of the cushion element ( 5 ) is formed by at least partially circumferential grooves ( 52 ) which have a height (h), which is approximately twice the thickness of the wall thickness of the box or crate. 7. Folding box or box according to one of claims 1 to 6, characterized in that the part of the cushion element ( 5 ) to be arranged within the box or box is designed as a holding plate ( 55 ). 8. Folding box or box according to one of claims 1 to 6, characterized in that the part of the cushion element ( 5 ) extending within the box or box is formed with fork-like protruding at least two cushion arms ( 56, 57 ). 9. folding box or box according to claim 8, characterized in that the cushion arms ( 56, 57 ) are profiled. 10. A folding box or box according to claim 8 or 9, characterized in that a U-shaped profiled receiving groove ( 58 ) is formed between the cushion arms ( 56 , 57 ). 11. Cardboard box or box according to one of claims 8 to 10, characterized in that the fork-shaped protruding cushion arms ( 56, 57 ) of the part of the cushion element ( 5 ) extending within the box or box are profiled in the same direction or in opposite directions. 12. A folding box or box according to claim 11, characterized in that the cushion arms ( 56 , 57 ) of the cushion element ( 5 ) have a wavy shape when viewed in cross section. 13. Cardboard box or box according to one of claims 8 to 12, characterized in that the cushion arms ( 56, 57 ) of the cushion element ( 5 ) are spread apart. 14. Cardboard box or box according to one of claims 8 to 13, characterized in that the cushion arms ( 56, 57 ) of the cushion element ( 5 ) are of different lengths. 15. Folding box or box according to one of claims 8 to 14, characterized in that the cushion elements ( 5 ) in complementary association with each other by punching out a plate ( 6 ) with a height (s) that the width (s) one Upholstery element ( 5 ) corresponds to are made. 16. Cardboard box or box according to one of claims 1 to 15, characterized in that the cushion elements ( 5 ) are made of foam, in particular of an at least partially cross-linked polyolefin-based foam with a density less than 70 kg / m³, a tensile strength of at least 0.2 N / m², a compressive stress at 50% deformation of at least 80 kN / m² and an elongation at break of at least 110%.