EP1459650B1 - Shelf made of foldable material such as cardboard - Google Patents

Abstract

The combination of back panel (3) and lateral parts (4) of the unit is created by folding the lateral parts (4) into four layers provided with a vertically positioned row of diagonal slots (11). The upper ends of two stands (6), accommodated with their lower ends in a base (12), can be inserted into the space between the layers from below. Each of the boards (2) is folded along predetermined lines in order to create elevated front and lateral borders (9) as well as flaps (10) at the rear of the lateral borders (9) for being inserted into the appropriate slots (11).

Description

The invention relates to a shelf of a foldable, sheet material such as cardboard or the like with a shelf support and at least one plug-in shelf according to the preamble of the main claim.

Generic shelves are used as a merchandise display or other purposes, if low material and manufacturing costs, ease of installation or good disposal is desired. From the publication DE 198 60 305 A1 is such a shelf is known in which the shelf support next to a rear wall has two side walls, between which shelves are mounted. The side walls are approximately as deep as the shelves, so that laterally closed shelves arise through the side walls. The construction requires extremely large amounts of material, both in terms of area as well as related to required for a sufficient stability wall thicknesses. Also creates an overall impression of a very closed shelf, which lacks a straight for transparency desired transparency.

The invention is therefore based on the object to design a generic shelf that manages with respect to a shelf according to the prior art while avoiding loss of stability with smaller amounts of material, the shelves to achieve a transparent overall impression should be as accessible as possible laterally.

This object is achieved by a shelf with the characterizing features of the main claim in conjunction with the features of the preamble of the main claim. Advantageous embodiments and further developments of the invention will become apparent with the features of the subclaims.

The invention makes it possible to use a shelf support with respect to the prior art significantly reduced depth, and in particular to dispense with almost complete lateral coverage of the shelves by side walls. Compared with a tab, which is articulated according to the prior art at a lateral boundary of the base surface and in particular at the level of the base, arranged on a wall portion or an extension of a wall portion of the shelf tab for insertion above a defined by the base level a clearly offset in the direction of the rear wall position are suspended in the shelf support. Realistic is a positioning of the slot for receiving the tab in one Area which is located above a last third of the shelf or the base of the shelf or to the rear wall or even offset beyond the base in the direction of shelf support.

Any existing side walls of the shelf support can thus be considerably reduced in depth. But this also makes possible completely different forms for the rack carrier. The invention achieves a visually appealing and, in particular, for goods displays very welcome, transparent and less areal construction, which is associated with considerable material savings. Even with additionally reduced wall thicknesses no loss of stability can be observed. In addition, such a shelf is extremely easy to set up, in particular, no bonding is necessary for attaching the shelves.

In expedient embodiments of the invention, the slot is located at a vertical distance above the level defined by the base of the shelf, which is between one-fifth of a shelf depth and a whole shelf depth. Here, the shelf depth is defined as the maximum horizontal extent of the base in a direction perpendicular to the rear wall. A good load-bearing capacity of the shelf is obtained with a ratio of the vertical distance to the shelf depth of between 1: 4 and 1: 1, a particularly good compromise between shelf load capacity and transparency of its design at values of this ratio of between 1: 3 and 2: 3 , Since the slot has a finite extent, this refers to an indication of its height or a height distance to its center.

In a preferred embodiment, the slot for receiving a tab at a position at which the carrier is at least two layers, so that the tab is in the inserted state between two layers. A bending of a kink at the corresponding bending edge and a slipping of the tab is thereby prevented. A force caused by the shelf or by a load carried by the shelf can be transmitted to the shelf support at a boundary of the slot against which the bending edge abuts. Advantageously, the tab has at the bending edge a Umbug of 180 °.

It is particularly advantageous if the shelf has two lugs on two opposite lateral wall parts or extensions of lateral wall parts, preferably for hooking in or plugging in in each case a side wall of the shelf support. This results in a particularly stable construction in that the side walls are loaded in a direction which lies in a plane defined by a side wall.

The shelf support can form a substantially U-shaped cross-section with the two, advantageously via kinked edges connected to the rear wall and preferably with this one substantially right angle forming side walls as legs. In this case, it is very easy to realize a doubling of the side walls by revolving each side wall about a further bending edge. The rear wall and the two-ply side walls can consist of one piece and be glued in places. In a shelf support of the described shape, the slots for hanging shelves can both facing each other and facing away from each other Be arranged sides of the side walls.

The shelf support can also be shaped so that it forms a closed profile around. It is also conceivable, for example, an octagonal or hexagonal cross section, so that the shelf support, for example, has the shape of a standing pencil. In a particularly preferred embodiment, however, the shelf support has a rectangular horizontal cross-section, in total therefore, for example, a cuboid shape or a similar, tapered by mutually inclined walls upwards shape. In these embodiments, the rear wall and the side walls of the shelf support are supplemented by a further, parallel to the rear wall or almost parallel wall to four outer walls. All four outer walls can be made of one piece and connected by creases, wherein two of the outer walls are glued together in the region of a contact edge, for example by an adhesive flap. In a closed shelf support rectangular cross-section shelves can also be attached to two opposite outer walls, ie in particular both on the rear wall and on the rear wall parallel or almost parallel outer wall. A shelf support with closed cross-section is particularly torsion and torsion stiff and leads to a shelf of great stability, even if the shelf support has a relatively small depth.

The stability of the shelf can be further increased if the shelf support moreover has an inner profile with a shape substantially corresponding to the shape of the shelf support to be inserted between the outer walls such that the outer walls of the shelf support are supported by walls of the inner profile become. In such a construction, the walls of the inner profile can serve as a second layer between which and the outer wall is inserted through a slot in the outer wall inserted, a shelf-bearing tab is clamped. Also, the inner profile can be made in one piece with interconnected walls via creases, possibly glued at a contact point of two edges, for example by means of one or more adhesive tabs.

A particular advantage of the invention described here lies in the manufacturability of the shelf from inexpensive and environmentally friendly cardboard to be disposed of. Particularly useful is a production of corrugated cardboard, which can be painted one or two sides, if a corresponding color is desired and an overly "pappiger" impression should be avoided. A use of corrugated board brings a very high stability with it, particularly good results are achieved if you choose the corrugated board depending on the component and load with wall thicknesses of between 1 mm and 20 mm, preferably between 2 mm and 12 mm. To increase the stability of highly stressed components can also be made of corrugated cardboard with two or more wave positions.

In a construction made of corrugated cardboard, it must be taken into account that corrugated cardboard is particularly kink-resistant, primarily against buckling about an axis running transversely to the wave path, wherein the wave course is defined as the direction of the course of a single wave trough. For a stable as possible shelf for a given cost of material, it is particularly useful if the corrugated, from the rear wall, the side walls or other outer walls and possibly the inner profile or other components of the shelf support are made, has a vertical waveform. For the tabs made of corrugated board shelves in turn, a connecting to the tab with the shelf edge as possible transverse waveform is advantageous because corrugated cardboard in the direction of the waveform also has a higher load capacity on train.

In particular, in a shelf or components of the shelf made of corrugated cardboard execution of the creases as creasing is appropriate. If a bend of about 180 ° for embracing a boundary of another surface is provided at a bending edge, for example, at a crease, which connects a tab with a shelf, it is particularly appropriate, the bending edge by two approximately at a distance of a wall thickness at the Boundary run parallel to each other running score lines.

In order to ensure a secure state of the shelf, feet are expediently provided, which are preferably also made of a sheet material such as cardboard and vertical in a vertical direction to the rear wall, vertical position in a vertical position in an incision at a lower boundary of the shelf support are inserted. Preferably, the feet are designed as extensions of legs that can be inserted, for example, between two layers of a respective side wall of the shelf support. This achieves a further increase in the stability of the shelf carrier. Such a foot can be designed so that it supports the shelf one or two sides. The feet can be turned over by a likewise advantageously made of cardboard bottom part, which may have a shelf-like shape and both the secure state of the shelf and its improved the safe state of the shelf as well as its visual appearance.

In order to achieve increased carrying capacity of the shelf, the shelf support can also be provided with one or more reinforcing walls, which can be advantageously inserted or clamped between two layers, it is also possible an adhesive bond to a wall or a position of a wall of the shelf support. Such a reinforcing wall can also be designed as a slot reinforcement in the form of a doubling of a wall of the shelf support at a location where it has one or more slots for receiving tabs.

The base of the shelf can be designed to reinforce two layers. A shelf can be made of a piece of corrugated cardboard, the base, sidewalls with tabs, possibly folded edges and possibly doublings of individual walls are connected by creases. A more stable and resilient connection of the shelf with the shelf support is obtained when the shelf has one or more other tabs, deflected at a boundary of the base, which abuts when the shelf is mounted on the rear wall. Such a tab can either be inserted into an additional slot in the rear wall or adhered to the rear wall. Also, a shelf glued in this way on the shelf support would allow a space-saving transport with resting on the rear wall surface, to set up the shelf would have to be folded away in a particularly simple manner only from the rear wall and plugged with the tabs of the wall parts of the shelf in the corresponding slots ,

In order to ensure the best possible transmission of force, to prevent tearing of a tab along the bend edge connecting the tab to the shelf and to achieve a total of a maximum in terms of space and thickness as low as possible material cost, it is expedient if a slot is oriented so that it is loaded by the hinged flap as possible in a direction perpendicular to the slot. Depending on whether and to what extent the rear wall of the shelf support with the help of other tabs by a load of the shelf caused weight can absorb the slot for receiving a tab of a wall portion of the shelf is advantageously arranged so that its the tab or the corresponding Buckling edge holding boundary is arranged vertically when erected shelf or tilted at an angle from the vertical that a centrally abraded from this boundary perpendicular cuts the base in the optimum case at a depth in which the shelf is heavily loaded in use (the tangent of this Angle then has the value of the quotient h / l when h is the mean vertical distance of base and slot and l the average horizontal distance of the slot from a location of heavy load on the base, typically in the range between half and full shelf depth). A typical convenient value for this angle is between 20 ° and 40 °. Incidentally, a slot for inserting a tab can also be widened and does not necessarily have strictly parallel opposing edges.

In addition to shelves of shelves typical shape with horizontal bases are also different embodiments conceivable. In particular, the bases of the shelves can be inclined, as may be desirable for example for merchandise or brochure displays. The level of the base in the sense of the main claim is defined in this case as the highest occupied by the base level, at appropriately abutting the rear wall shelf with sloping away from the rear wall base so as the height of the rear wall touching edge of the base. Also possible is a shelf shaped as a bag, such that the wall parts of the shelf have compared to the base area of relatively large dimensions.

To compensate for a yielding of the shelf under load and to ensure a straight stand of the shelf even with loaded shelves, you can run the shelf support so that he or the rear wall at unloaded shelf by a small angle of preferably between 1 ° and 3 ° from the Vertical to a side facing away from the shelves is inclined. Alternatively or additionally, the shelves may be designed so that their bases are inclined in the unloaded state by a small angle of preferably between 2 ° and 4 ° away from the rear wall rising from the horizontal.

A shelf of the type described here may have different sizes depending on the purpose. Appropriate designs have a height of between 60 cm and 3 m, a width of between 30 cm and 1.5 m with a typical shelf depth of between 20 cm and 80 cm. Such shelves are well suited as a kit for uncomplicated construction by a user.

A shelf according to the invention, which is made of a bendable, sheet material such as cardboard or the like, thus has a shelf support and at least one plug-in shelf, wherein the shelf has at least one connected via a bending edge hinged to the shelf tab for insertion into a slot in the shelf support in such a way that the shelf has a base surface and wall parts connected to the base surface via bent edges, that the tab is arranged on one of the wall parts or an extension of one of the wall parts, and that the slot lies above a level defined by the base surface when the shelf is set up , In typical embodiments, the shelf support has a back wall, but this is not necessarily the case. Also conceivable are designs in which the shelf support has no back wall. The shelf support may then be formed, for example, by an open frame in which the shelves hang between two side walls. Such a shelf offers a particularly transparent sight. All of the features listed in the dependent claims can be realized with the advantages already mentioned in any combination even with such shelves without back wall. Further advantageous additional features that can be realized in all conceivable combinations in shelves according to the invention with or without back wall, resulting from the embodiments described below.

Fig. 1

ein erfindungsgemäßes Regal in perspektivischer Darstellung,

Fig. 2

das Regal aus Fig. 1 in auseinandergezogenem, teilweise zerlegtem Zustand,

Fig. 3

Bestandteile eines Regalträgers für das Regal aus Fig. 1 und Fig. 2 als Rohlinge,

Fig. 4

ebenfalls in perspektivischer Darstellung ein anderes erfindungsgemäßes Regal mit einem zusätzlich abgebildeten weiteren Regalboden,

Fig. 5

ein weiteres erfindungsgemäßes Regal in gleicher Darstellung,

Fig. 6

Rohlinge von Bestandteilen eines Regalträgers für das Regals aus Fig. 5,

Fig. 7

als Seitenansicht ein erfindungsgemäßes Regal mit an zwei Seiten eines Regalträgers schräg montierten Regalböden,

Fig. 8

Rohlinge dreier verschiedener Regalböden für erfindungsgemäße Regale,

Fig. 9

ein weiteres erfindungsgemäßes Regal mit vier verschiedenen Regalböden in Seitenansicht,

Fig. 10

ein anderes in Seitenansicht abgebildetes Regal mit einander gegenüberliegend montierten Regalböden,

Fig. 11

in perspektivischer Darstellung ein Regal mit einem ausschließlich an einer Rückwand befestigten Regalboden,

Fig. 12

einen Regalträger für ein erfindungsgemäßes Regal hexagonaler Grundform in perspektivischer Darstellung,

Fig. 13

Bestandteile eines anderen Regalträgers für ein erfindungsgemäßes Regal als Rohlinge (also als Zuschnittzeichnung),

Fig. 14

in gleicher Darstellung einen weiteren Regalträger in einzelnen Bestandteilen,

Fig. 15

als perspektivische Ansicht eine andere Ausführungsform eines erfindungsgemäßen Regals,

Fig. 16

einen Zuschnitt eines Regalbodens für das in Fig. 15 gezeigte Regal,

Fig. 17

eine Ansicht eines erfindungsgemäßen Regals ohne Rückwand,

Fig. 18

einen Zuschnitt eines weiteren Regalbodens und

Fig. 19

einen Zuschnitt eines wiederum anders ausgeführten Regalbodens mit einer (rechts im Bild dargestellten) Seitenansicht eines entsprechenden Regals.

Embodiments of the invention are thus shown in Figures 1 to 19. It shows

Fig. 1

an inventive shelf in perspective,

Fig. 2

the shelf of Figure 1 in an exploded, partially disassembled state,

Fig. 3

Components of a shelf support for the shelf of FIG. 1 and FIG. 2 as blanks,

Fig. 4

likewise a perspective view of another inventive shelf with an additionally depicted further shelf,

Fig. 5

another shelf according to the invention in the same representation,

Fig. 6

Blanks of components of a shelf support for the shelf of Fig. 5,

Fig. 7

as a side view of an inventive shelf with on two sides of a shelf support obliquely mounted shelves,

Fig. 8

Blanks of three different shelves for shelves according to the invention,

Fig. 9

another inventive shelf with four different shelves in side view,

Fig. 10

another in side view pictured shelf with oppositely mounted shelves,

Fig. 11

a perspective view of a shelf with a fortified exclusively on a back wall shelf,

Fig. 12

a shelf support for a shelf according to the invention hexagonal basic shape in perspective view,

Fig. 13

Components of another shelf support for a shelf according to the invention as blanks (that is, as a blank drawing),

Fig. 14

in the same representation another shelf support in individual components,

Fig. 15

as a perspective view of another embodiment of an inventive shelf

Fig. 16

a blank of a shelf for the shelf shown in Fig. 15,

Fig. 17

a view of a shelf according to the invention without back wall,

Fig. 18

a blank of another shelf and

Fig. 19

a cut of a turn other running shelf with a (right in the picture shown) side view of a corresponding shelf.

The shelf shown in Fig. 1 consists of a shelf support 1 and four shelves 2 and is made entirely of corrugated cardboard. The shelf support 1 has a rear wall 3 and two opposite side walls 4 connected to the rear wall 3, each via a bending edge. Each of the two side walls 4 consists of a total of four cardboard layers, including in each case one not visible in this figure slot reinforcement 5 and a likewise not visible in the figure leg 6, which widened at a lower end to a likewise hidden foot 7. The two remaining layers of each side wall 4 are in turn connected to each other via a bending edge and take the slot reinforcement 5 and the leg 6 in its center. Each shelf 2 has a base 8 and wall parts 9 connected to this base 8 in each case via a bending edge. On each of two lateral wall parts 9 of each shelf 2, a tab 10, which is not recognizable in the figure, is articulated via a further bending edge, with which the shelf 2 is inserted into slots 11 in the side walls 4 of the shelf support 1. Each slot 11 and the tab 10 inserted therein lies above a through the base 8 of the corresponding Shelf 2 defined levels by a vertical distance, which (in the figure to the left of the shelf shown as a vertical double arrow) corresponds to about half the shelf depth (shown below the shelf as a horizontal double arrow).

As a result of this construction, the shelves 2 essentially hang on the lugs 10, which are articulated on the side walls 9 or on extensions of the side walls 9. It is thus a very transparent construction possible in which the side walls 4 have a much smaller depth than the shelves 2, wherein despite the use of cardboard as a material an extremely high stability is achieved. A shelf of the type shown in this figure is particularly suitable for the display of goods because of its low cost and material-saving production and because of its ease of installation with high load capacity especially because of the transparent construction laterally easily accessible shelves.

The slots 11 are inclined in the illustrated shelf by an angle of about 30 ° from the vertical, so that a perpendicularly removed from a slot 11 perpendicular cuts the level of the base 8 of the corresponding shelf 9 at a depth that under normal use of the emphasis load corresponds to this shelf. The plugged into those slot 11 tab 10 with the base 8 connecting wall part 9 is thus burdened with loaded shelf 2 to train that at a boundary of the slot 11, a force is transmitted to this boundary vertical direction. For a given material cost, this leads to maximum load capacity and prevents lateral tearing at the the tab 10 with the wall part connecting bending edge. In the illustrated embodiment of the invention, the hidden feet 7 are turned upside down by a bottom part 12, which in addition to a further increase in stability. Another shelf-like compartment is created at ground level.

In Fig. 2, the shelf of Fig. 1 is again pulled apart and shown partially disassembled. In particular, there is also shown a single shelf 2, in which in addition to the base 8 and the wall parts 9, the tabs 10 can be seen, with which the shelf is to be inserted into the shelf support 1. On the shelf 2 shown separately, an adhesive flap 13 can be seen, which is connected via a bent edge with the base 8 and disposed on a boundary of this base 8 and serves for bonding to the rear wall 3 of the shelf support 1. Even if the shelf 2 is glued to the adhesive flap 13 on the shelf support 1, the shelf can still very compact fold by the tabs 10 are pulled out of the corresponding slots 11, after which the shelf 2 with its base 8 flat against the rear wall 3 of Shelf support 1 can be folded. But the bonding can also be dispensed with, as a further possibility, instead of the adhesive flap 13, one or two further tabs may be attached to the corresponding boundary of the base 8 for insertion into additional slots 14 (not visible in this figure) on the rear wall 3 In the figure are visible, partially pulled out, the two legs 6, each widened at a lower end to a foot 7. Below the shelf-like bottom part 12 can be seen with which the feet 7 are to be turned. Also, the bottom part 12 has an adhesive flap thirteenth for bonding with the rear wall 3 of the shelf support 1. Again, the bonding is not essential, it is expedient point bonding at points that are marked in the figure with a squiggle. The corrugated board from which the shelf shown, untreated or at least in visible places in a desired color or be painted on two sides. The feet 7 are cut so that the shelf support 1 when erected shelf has an inclined by about 1 ° in a direction away from the shelves 2 direction rear wall 3 when the shelves 2 are not loaded. As a result, a slight yielding can be compensated, so that the shelf is straight with loaded shelves 2. For the same reason, the shelves 2 are designed so that their base 8 is inclined at unloaded shelf 2 by about 2 ° from the rear wall 3 away upwards. The shelf shown here has a height of about 2 m, a width of the rear wall 3 of about 70 cm and a depth of the shelves 2 of about 40 cm.

Fig. 3 shows blanks of components from which the carrier 1 of the shelf of FIGS. 1 and 2 is composed. It can be seen from left to right serving as a reinforcement wall rear wall doubling 3 ', the rear wall 3 and the side walls 4 forming component, a slot reinforcement 5, a leg 6 with foot 7 and in the unfolded state, the bottom part 12. All components shown are made of corrugated cardboard cut with a waveshape vertical with mapped orientation. The corrugated board, with the exception of the leg 6 with the foot 7 has a wall thickness of 3 mm and has a single wave position, only the corrugated board, which forms the leg 6 with the foot 7, is four-fold corrugated with a wall thickness of 12 mm. Crease lines are here as well as in the Fign. 6 and 8 drawn as dashed lines and executed as creasing lines. The back wall doubling 3 'can be glued by Punktverklebung on the rear wall 3, the easiest at points marked there with points, but is also possible both a larger area bonding as well as a glue-free pinching between the side walls 4. The back wall doubling 3', which when erected shelf becomes a part of the rear wall 3, has additional slots 14, in which optionally additional tabs of the shelves 2 not shown in this figure can be inserted. With points in each case under the additional slots 14 are drawn areas where instead of a shelf 2 can be hinged folded. Also, the component for the rear wall 3 with the side walls 4 has adhesive tabs 13, provided for bonding the side walls 4 after a buckling around the bending edges, so that between two resulting layers, the slot reinforcement 5, which has the side walls 4 corresponding slots 11 and the leg 6 can be inserted. The foot 7 comes to lie in an incision at a lower boundary of the shelf support 1 partially between two layers of the side wall 4. Fig. 3 clearly shows that a shelf according to the invention is particularly well suited as a kit.

4, another embodiment of a shelf according to the invention can be seen. Again, a single shelf 2 is shown above the shelf. Notwithstanding the shelf described above, the shelves 2 are here with the arranged on wall parts 9 of the shelves 2 tabs 10 on each side facing the side walls 4 in the slots 11 to insert. This creates another, technical Aspects less open overall impression. Identical features are again denoted by the same reference numerals as in the previously described figures, as well as in the following figures.

Another variant of a shelf according to the invention is shown in FIG. 5. Unlike the shelves of FIGS. 1 to 4, the shelf support 1 of this shelf has a closed, substantially rectangular horizontal cross-section. For this purpose, the rear wall 3 and the two substantially perpendicular to the rear wall 3 side walls 4, which here again have the slots 11, to an additional wall 15 which extends to the rear wall 3 is substantially parallel, added. Overall, the carrier 1 thereby essentially a cuboid shape and is particularly resistant to torsion and bending. The additional wall 15 is connected to one of the side walls 4 via a crease line again executed as a crease line, with the other side wall 4, it is glued using a not visible here adhesive flap 13. Also not visible in this figure is an inner profile 16, which in a cavity formed by the rear wall 3, the side walls and the additional wall 15 is inserted so that the said walls are characterized each two-layered. The inner profile 16 thereby increases the rigidity of the carrier and at the same time serves as a concern for the also not visible in this figure, inserted into the slots 11 tabs 10 of the shelves 2, whereby a slipping of these tabs 10 is prevented. In the shelf of similar construction shown embodiments of shelves according to the invention are possible in which the shelf support 1 is designed as a hollow profile with a polygonal, such as hexagonal or octagonal cross-section.

FIG. 6 shows the component shelf support 1 of the shelf from FIG. 5. On the left is a component which, with the rear wall 3, the side walls 4 and the additional wall 15, forms four outer walls of the carrier, which overlap in the illustration dashed lines are connected with each other and can be glued together with a glue flap 13 forming a cavity. The rear wall 3 has additional slots 14 for inserting additional tabs of the shelves 2, not shown here.

Right next to the inner profile 16 can be seen in unfolded state, consisting of four walls, which are connected by also designed as creasing lines creases. The component also has an adhesive tab 13 for bonding to one of the walls forming a back wall doubling 3 ', but this bonding is not necessary. Finally, a leg 6 with a foot 7 can be seen on the right, above this the bottom part 12. All the components shown are again made of corrugated cardboard, in the bottom part 12 both a horizontally oriented orientation and a vertical wave path are possible, which have other components of the carrier each a vertical waveform. For wall thickness and number of wave positions in the corrugated cardboard applies to Fig. 3 said accordingly.

The shelf shown in side view in Fig. 7 is constructed as the shelf of Figs. and 5 and 6, but this differs from the fact that on two sides of the shelf support 1 shelves 2 are mounted and that their base surfaces 8 are sloping sloping away from the shelf support 1. The slots 11 for insertion of the not visible tabs 10 are arranged vertically in this shelf, wherein such a slot 11 can accommodate two tabs 10 of two oppositely arranged shelves 2. The covered here again by a bottom part 12 feet 7 are symmetrical in this book as two-sided widening in the figure not visible, running between outer side walls 4 and corresponding walls of an also not visible here inner profile 16 inserted legs 6. They support this shelf forwards and backwards.

In Fig. 8, finally, three different shelves 2 are seen as blanks, each consisting of corrugated cardboard with a wave position and a thickness of 3 mm, the corrugated cardboard has shown in the figure orientation a horizontal waveform. However, it is also possible to use corrugated cardboard with two or more corrugations and / or with a wavy course which is vertical in this orientation and corrugated cardboard of greater or lesser wall thickness. Creasing lines, which serve as creasing edges in the assembly of the shelves 2 and a corresponding shelf are drawn in the figure as dashed lines. The shelves 2 each have a base 8 and in particular two lateral wall parts 9, with which a tab 10 is connected for insertion into the shelf via a bent edge. This last-mentioned bending edge is designed in each case as two parallel score lines, the spacing of these score lines corresponding to approximately one or two wall thicknesses. This facilitates a Umbug at this bending edge by about 180 °, taking into account the fact that the wall part 9 and the tab 10 when the shelf is erected with the side wall 4 not shown in this figure and possibly one slot reinforcement 5, also not shown here, take between one and two cardboard layers. The shelves 2 are cut so that these bending edges form an angle of at least 30 ° with the wave course, whereby a sufficient stability is ensured at this hinged and loaded shelf 2 on train in a direction substantially transversely to the corresponding bending edge loaded creases.

The shelves 2 have-each at one or two edges of their base 8 carding edges 17, which, in each case folded around two creases, in addition to the lateral wall parts 9 additional, the base surfaces 8 defining walls. The three shelves 2 shown differ in that the shelf 2 shown on the left in the figure hangs only on the tabs 10, whereas the illustrated in the middle shelf 2 has two additional slots 18 at a boundary of the base 8, with which he can be plugged into not shown here additional tabs 14 on a rear wall 3 of a shelf. The rightmost bottom shelf 2 has instead of the other tabs 18 for insertion on an adhesive tab 13 for adhering to a rear wall 3 of a shelf. The further tabs 18 of the shelf shown in the middle are punched or cut out of the base 8, wherein in this shelf 2, the base 8 has two layers, which are connected to a 180 ° bend over bending edge. All shown shelves 2 are cut out of a single piece of cardboard and can be mounted by simply folding and plugging, possibly with simple gluing.

The examples shown in the following figures (FIGS. 9 to 12) for various shelves or shelf supports according to the invention already show features which are characterized by the same reference numerals. Notwithstanding the shelves described with reference to the preceding figures, the shelf shown in FIG. 9 has various shelves 2. The example shown illustrates that the respective slots 11 may be inclined to different degrees. Two of the slots 11 are even arranged horizontally. In the shelf of Figure 10, the upper three slots 11 are widened and triangular shaped (it is also possible a heart-shaped shape of the slots 11) and serve, as well as the lower two slots 11, for holding two, oppositely arranged shelves. 2 In Fig. 11, a shelf can be seen, in which the slots 11 are arranged for receiving the tabs 10 are not recognizable here on the rear wall 3. Good to see is also an inner profile 16 (or core), here half pulled out, which forms a second position of the walls of the shelf support 1 in addition to a support function. In Fig. 12, finally, a shelf support 1 is shown for hexagonal basic shape for a shelf according to the invention, again with a core or inner profile 16 to be inserted, which is shown partially pulled out in the figure.

Further features of advantageous embodiments of the invention, which can be combined in any way with the features of shelves according to the invention already described, will be described with reference to the remaining FIGS. 13 to 19 explained. Recurring features are again provided there with the same reference numerals, for explanations be supplementary to the embodiments already described above directed.

In advantageous embodiments of shelves according to the invention, the shelf support 1 can have additional layers, preferably paperbacks, as reinforcements 19. Such reinforcements 19 can advantageously be provided in particular where the shelf support 1 has slots 11 for receiving the tabs 10. A particularly good fit of the tabs 10 and thus a particularly secure hold of the shelves 2 on the shelf support 1 is now obtained when such a reinforcement 19 each where a shelf 10 is located at mounted shelf 2, a corresponding recess 20 has. A particularly advantageous effect in this regard is achieved if the corresponding reinforcement 19 has a wall thickness corresponding to the tabs 10, ie is as thick as the corresponding tab 10.

Blanks for two shelf supports 1 designed in this way are shown in FIGS. 13 and 14. Both shelf supports 1 not only each have a reinforcing Rückwanddoppelung 3 ', but also reinforcements 19, which reinforce the lateral wall parts 9, at the same time legs 6 and in the case of Fig. 14 also feet 7 of the corresponding shelf support 1 and in the manner described recesses 20th have, in which the tabs 10 are not pictured shelves 2 come to rest when the shelf is erected. The said reinforcements 19 are made from a corrugated cardboard which is just as thick as the mentioned tabs 10. Unlike the shelf supports shown in FIG. 13, the recesses 20 in the reinforcements 19 of the shelf support 1 from FIG. 14 are not closed but arranged on an edge of the respective reinforcement 19. To increase the stability of the shelf support 1 of FIG. 14, two further reinforcements 19 'for each of the side walls 4 are provided, these additional reinforcements 19' again each legs 6 and 7 feet form for the corresponding shelf. The reinforcements 19 and 19 'can be glued to increase the stability with adjacent layers, in the examples shown so with a further reinforcement 19 or 19' and / or a side wall 4.

The tabs 10 for hanging the shelves 2 on the shelf support 1 can also be arranged on a side facing away from the shelves 2 of the shelf support 1 in likewise advantageous embodiments of the invention. In the case of a closed shelf support 1 which is typical for corresponding embodiments and which may, for example, have a cuboid shape, the slots 11 would then be attached to an additional wall 15 parallel to the actual rear wall 13. Such executed shelves are particularly resilient because a force on the tab 10 is then flat and an additional bending edge 21.

A view of a corresponding shelf is shown in FIG. 15, a blank of a corresponding shelf 2 in FIG. 16. The closed shelf support 1 of the shelf shown in FIG. 15 is filled by a plurality of cardboard plies not recognizable in the figure, whereby the shelf support 1 receives a special stability. The said cardboard layers can be glued to each other and to an outer cardboard wrapping surrounding the shelf support 1. In the illustrated embodiment, the outer layer comprising the slots 11 is cut symmetrically, and where there is a dashed line in the figure, two Cut edges at a close distance or touching each other in parallel. The mentioned cardboard plies here fulfill the same function as the inner profile 16 in the shelf carrier shown in FIG. As a material for the Papplagen offers corrugated board, just as possible and advantageous for weight reasons but also a use of honeycomb cardboard or other lightweight sheet materials. Incidentally, the use of honeycomb cardboard instead of or in addition to corrugated cardboard also comes into question for any other components of this or other shelves according to the invention.

In Fig. 17, finally, a further inventive shelf is shown in a perspective view that is executed deviating from the embodiments described above without the back wall. The shelf support 1 thus has here only two side walls 4 and an upper cross-connection 22 and a lower cross-connection 23, which together with the side walls 4 form a frame. The shelves 2 here each have a total of four tabs 10, not visible here, of which two are to be hooked into two slots 11 of each side wall 4. The backless shelf of FIG. 17 is characterized in that it acts particularly transparent.

In order to prevent jumping out of the tabs 10 from the slots 11 and thus a jumping out of the shelves 2 from the shelf support 1 of a shelf according to the invention, can be provided in a particularly advantageous shelves 2 for shelves according to the invention a doubling of the lateral wall parts 9 by an additional layer 24, which is shaped so that it blocks the corresponding tab 10 when the shelf 2 is mounted by acting as a kind of bar.

In Fig. 18 a blank of a corresponding shelf 2 is shown, wherein two lateral wall parts 9 of this shelf 2 are designed two different versions accordingly. On the left side of the picture, an additional layer 24, designed as a carded edge 17, can be seen, which is folded over the actual wall part 9 during insertion of the corresponding shelf 10 after inserting the corresponding tab 10, so that it engages this lateral wall part 9, the tab 10 and the corresponding slot not shown here covering and the tab 10 secures against a jump out. This is possible because said additional layer 24 on the left has larger dimensions in the image than the side wall part 9 provided with the tab 10. In order to facilitate application of the additional layer 24 to the lateral wall part 9, the additional layer 24 has a crease line 25 on which the additional layer 24 can be folded. On the right in the picture is another, albeit comparable, safeguard against jumping out of the corresponding tab 10. There, too, an additional layer 24 designed as a carded edge 17 can be seen for application to the corresponding lateral wall part 9. Here, however, the additional layer has 24 dimensions corresponding to the lateral wall portion, but has a securing tab 26, which is articulated via a bending edge and after applying the additional layer 24 to the side wall portion 9 with the corresponding slot 11 to cover lie comes. It is now provided to introduce the securing tab 26 in addition to the then already in the slot 11 resting tab 10 in the slot 11, whereby the securing tab 26 acts as a bar and prevents jumping out of the tab 10.

Another shelf 2 for a shelf according to the invention is finally shown in FIG. 19. Two details are worth mentioning here. On the one hand, the two tabs 10 of the illustrated shelf 2 are here each in the form of approximately half a heart executed. This shape allows a particularly simple insertion of the tabs 10 in the corresponding slots 11, see also the side view of the corresponding shelf right in the picture. By a special tab shape described and mapped type hooking the shelf 2 by a simple insertion of the already folded tabs 10 from above into the inclined slots 11 here in possible. As a further detail, the illustrated shelf 2, which is designed slightly inclined backwards when erected shelf, a second bottom 27 which is placed or glued to the base 8 and is bent around an edge so that it at this edge a right Angle forms, with a bent part comes to rest on the rear wall 3 of the shelf support 1. In the illustrated embodiment, the shelf 2 thereby receives a shape of a storage compartment with a formed by the second bottom 27 right angle 28 at a lower end (despite the inclined base 8) and is thus particularly suitable for storage of rectangular objects such as books.

1. 1. ein Regal aus einem knickbaren, flächigen Material wie Pappe oder dergleichen mit einem vorzugsweise eine Rückwand aufweisenden Regalträger und mindestens einem einsteckbaren Regalboden, wobei der Regalboden mindestens eine über eine Knickkante gelenkig mit dem Regalboden verbundene Lasche zum Einstecken in einen Schlitz im Regalträger aufweist, dadurch gekennzeichnet, dass der Regalboden (2) eine Grundfläche (8) sowie mit der Grundfläche (8) über Knickkanten verbundene Wandteile (9) aufweist, dass die Lasche (10) an einem der Wandteile (9) oder einer Verlängerung eines der Wandteile (9) angeordnet ist und dass der Schlitz (11) bei aufgestelltem Regal oberhalb eines durch die Grundfläche (8) definierten Niveaus liegt,
2. 2. ein Regal nach Punkt 1, dadurch gekennzeichnet, dass der Schlitz (11) an einer Stelle ist, an welcher der Träger (1) mindestens zweilagig ist, so dass die Lasche (10) in eingestecktem Zustand zwischen zwei Lagen liegt, während die die Lasche (10) mit dem Regalboden (2) verbindende Knickkante an einer Berandung des Schlitzes (11) anliegt,
3. 3. ein Regal nach einem der Punkte 1 oder 2, dadurch gekennzeichnet, dass der Regalboden (2) mindestens zwei Laschen (10) an seitlichen Wandteilen (9) oder Verlängerungen seitlicher Wandteile (9) aufweist,
4. 4. ein Regal nach einem der Punkte 1 bis 3, dadurch gekennzeichnet, dass der Regalträger (1) zwei vorzugsweise über Knickkanten mit der Rückwand (3) verbundene, mit dieser vorzugsweise im Wesentlichen einen rechten Winkel bildende Seitenwände (4) aufweist,
5. 5. ein Regal nach den Punkten 3 und 4, dadurch gekennzeichnet, dass beide Seitenwände (4) jeweils einen bei aufgestelltem Regal oberhalb des durch die Grundfläche (8) definierten Niveaus liegenden Schlitz (11) zur Aufnahme einer Lasche (10) aufweisen,
6. 6. ein Regal nach einem der Punkte 1 bis 5, dadurch gekennzeichnet, dass der Regalträger (1) einen bei aufgestelltem Regal horizontalen Querschnitt konvex mehreckiger, vorzugsweise rechteckiger Gestalt hat, der durch vorzugsweise über Knickkanten miteinander verbundene Außenwände gebildet wird,
7. 7. ein Regal nach Punkt 6, dadurch gekennzeichnet, dass es ein in einen durch die Außenwände umfassten Hohlraum eingeschobenes Innenprofil (16) aufweist mit einem dem Querschnitt des Regalträgers (1) im Wesentlichen entsprechenden Querschnitt, wobei das Innenprofil (16) vorzugsweise aus über Knickkanten miteinander verbundenen Wänden besteht,
8. 8. ein Regal nach einem der Punkte 1 bis 7, dadurch gekennzeichnet, dass es zumindest teilweise, vorzugsweise vollständig aus Wellpappe besteht,
9. 9. ein Regal nach Punkt 8, dadurch gekennzeichnet, dass die Wellpappe zumindest stellenweise ein- oder zweiseitig lackiert ist,
10. 10. ein Regal nach Punkt 8 oder 9, dadurch gekennzeichnet, dass die Wellpappe Wandstärken zwischen 1 mm und 20 mm, vorzugsweise zwischen 2 mm und 12 mm hat,
11. 11. ein Regal nach einem der Punkte 8 bis 10, dadurch gekennzeichnet, dass die Wellpappe stellenweise zwei oder mehrere Wellenlagen aufweist,
12. 12. ein Regal nach einem der Punkte 8 bis 11, dadurch gekennzeichnet, dass die Wellpappe beim Regalträger (2) einen bei aufgestelltem Regal vertikalen Wellenverlauf hat,
13. 13. ein Regal nach einem der Punkte 8 bis 12, dadurch gekennzeichnet, dass die Wellpappe bei einer Lasche (10) einen gegenüber der die Lasche (10) mit dem Regalboden (2) verbindenden Knickkante um einen Winkel von mindestens 20°, vorzugsweise mindestens 45° geneigten Wellenverlauf hat,
14. 14. ein Regal nach einem der Punkte 1 bis 13, dadurch gekennzeichnet, dass die Knickkanten als Rilllinien ausgeführt sind,
15. 15. ein Regal nach einem der Punkte 1 bis 14, dadurch gekennzeichnet, dass die Knickkante, über welche eine Lasche (10) mit dem Regalboden (2) verbunden ist, durch zwei ungefähr in einem Abstand von einer Wandstärke bis zwei Wandstärken parallel verlaufende Rilllinien gebildet ist,
16. 16. ein Regal nach einem der Punkte 1 bis 15, dadurch gekennzeichnet, dass der Regalträger (1) an einer unteren Berandung in Einschnitte eingeschobene Füße (7) aufweist, vorzugsweise realisiert als Verbreiterungen von Beinen (6), wobei die Beine (6) bei aufgestelltem Regal zwischen zwei Lagen des Regalträgers (1) anliegen,
17. 17. ein Regal nach Punkt 16, dadurch gekennzeichnet, dass die Füße von einem Bodenteil (12) umkrempelt sind, welche eventuell mit einer Klebelasche (13) am Regalträger (1) angeklebt ist,
18. 18. ein Regal nach einem der Punkte 1 bis 17, dadurch gekennzeichnet, dass der Regalträger (1) mindestens eine zwischen zwei Lagen eingeschobene und/oder an eine Lage angeklebte Verstärkungswand aufweist, eventuell als Schlitzverstärkung (5) ausgeführt,
19. 19. ein Regal nach einem der Punkte 1 bis 18, dadurch gekennzeichnet, dass die Grundfläche (8) des Regalbodens (2) zwei Lagen aufweist, die eventuell über eine Knickkante miteinander verbunden sind,
20. 20. ein Regal nach einem der Punkte 1 bis 19, dadurch gekennzeichnet, dass der Schlitz (11) zum Einstecken einer Lasche (10) des Regalbodens (2) einen vertikalen oder um einen Winkel aus der Vertikalen geneigten Verlauf hat,
21. 21. ein Regal nach einem der Punkte 1 bis 20, dadurch gekennzeichnet, dass der Regalboden (2) mindestens eine über eine Knickkante mit der Grundfläche (8) verbundene weitere Lasche (18) oder eine Klebelasche (13), die eventuell ein ausgeschnittener oder ausgestanzter Bestandteil der Grundfläche (8) ist, zum Einstecken in einen zusätzlichen Schlitz (14) in der Rückwand (3) bzw. an der Rückwand (3) angeklebt aufweist,
22. 22. ein Regal nach einem der Punkte 1 bis 21, dadurch gekennzeichnet, dass der Regalboden als Tasche geformt ist,
23. 23. ein Regal nach einem der Punkte 1 bis 22, dadurch gekennzeichnet, dass die Grundfläche (8) des Regalbodens (2) horizontal oder geneigt ist,
24. 24. ein Regal nach einem der Punkte 1 bis 23, dadurch gekennzeichnet, dass bei aufgestelltem Regal die Rückwand (3) um einen Winkel von 1° bis 3° aus der Vertikalen zu einer dem Regalboden (2) abgewandten Seite hin geneigt ist und/oder die Grundfläche (8) um einen Winkel von 2° bis 4° aus der Horizontalen von der Rückwand (3) weg ansteigend geneigt ist,
25. 25. ein Regal nach einem der Punkte 1 bis 24, dadurch gekennzeichnet, dass seine Höhe zwischen 60 cm und 3 m, seine Breite zwischen 30 cm und 1,5 m und/oder seine Tiefe zwischen 20 cm und 80 cm beträgt.

In particular, it is advantageous after what has been said

1. 1. a shelf of a bendable, sheet material such as cardboard or the like with a preferably a rear wall having shelf support and at least one plug-in shelf, wherein the shelf at least one of a Bending edge hinged to the shelf connected tab for insertion into a slot in the shelf support, characterized in that the shelf (2) has a base (8) and with the base (8) via folding edges connected wall parts (9) that the tab ( 10) is arranged on one of the wall parts (9) or an extension of one of the wall parts (9) and that the slot (11) lies above a level defined by the base surface (8) when the shelf is set up,
2. 2. a shelf according to item 1, characterized in that the slot (11) is at a position at which the carrier (1) is at least two layers, so that the tab (10) is in the inserted state between two layers, while the the tab (10) with the shelf (2) connecting buckling edge rests against a boundary of the slot (11),
3. 3. a shelf according to one of the items 1 or 2, characterized in that the shelf (2) has at least two tabs (10) on lateral wall parts (9) or extensions of lateral wall parts (9),
4. 4. a shelf according to one of the items 1 to 3, characterized in that the shelf support (1) has two preferably via creased edges with the rear wall (3) connected to this preferably substantially a right angle forming side walls (4),
5. 5. a shelf according to the points 3 and 4, characterized in that both side walls (4) each one in a raised shelf above the through the base (8) have defined levels lying slot (11) for receiving a tab (10),
6. 6. a shelf according to one of the items 1 to 5, characterized in that the shelf support (1) has a horizontal shelf cross-section in a convex polygonal, preferably rectangular shape, which is formed by interconnected preferably via creases outer walls,
7. 7. a shelf according to item 6, characterized in that it has an inserted into a cavity surrounded by the outer walls inner profile (16) having a cross section of the shelf support (1) substantially corresponding cross-section, wherein the inner profile (16) preferably from above Knickkanten consists of interconnected walls,
8. 8. a shelf according to one of the items 1 to 7, characterized in that it consists at least partially, preferably entirely of corrugated cardboard,
9. 9. a shelf according to item 8, characterized in that the corrugated cardboard is painted at least in places on one or two sides,
10. 10. a shelf according to item 8 or 9, characterized in that the corrugated cardboard has wall thicknesses between 1 mm and 20 mm, preferably between 2 mm and 12 mm,
11. 11. a shelf according to one of the items 8 to 10, characterized in that the corrugated cardboard has in places two or more corrugations,
12. 12. a shelf according to one of the items 8 to 11, characterized in that the corrugated cardboard at the shelf support (2) has a vertical position when the shelf is erected,
13. 13. a shelf according to one of the items 8 to 12, characterized in that the corrugated cardboard at a tab (10) opposite the the tab (10) with the shelf (2) connecting the bending edge by an angle of at least 20 °, preferably at least 45 ° inclined waveform has,
14. 14. a shelf according to one of the items 1 to 13, characterized in that the bending edges are designed as creasing lines,
15. 15. a shelf according to one of the items 1 to 14, characterized in that the bending edge, via which a tab (10) with the shelf (2) is connected by two approximately at a distance from one wall thickness to two wall thicknesses parallel creasing lines is formed,
16. 16. a shelf according to one of the items 1 to 15, characterized in that the shelf support (1) at a lower boundary in incisions inserted feet (7), preferably realized as spacers of legs (6), wherein the legs (6) when the shelf is placed between two layers of the shelf support (1),
17. 17. a shelf according to item 16, characterized in that the feet are turned over by a bottom part (12), which is possibly glued to the shelf support (1) with an adhesive tab (13),
18. 18. a shelf according to one of the items 1 to 17, characterized in that the shelf support (1) has at least one inserted between two layers and / or glued to a layer reinforcing wall, possibly designed as a slot reinforcement (5),
19. 19 a shelf according to one of the points 1 to 18, characterized in that the base (8) of the shelf (2) has two layers, which are possibly connected to each other via a bending edge,
20. 20. a shelf according to any one of items 1 to 19, characterized in that the slot (11) for insertion of a tab (10) of the shelf (2) has a vertical or inclined at an angle from the vertical course,
21. 21. a shelf according to one of the items 1 to 20, characterized in that the shelf (2) at least one connected via a bending edge with the base (8) further tab (18) or an adhesive tab (13), which may be a cut or stamped-out part of the base (8) is glued, for insertion in an additional slot (14) in the rear wall (3) or on the rear wall (3),
22. 22. a shelf according to one of the items 1 to 21, characterized in that the shelf is shaped as a bag,
23. 23. a shelf according to any one of items 1 to 22, characterized in that the base (8) of the shelf (2) is horizontal or inclined,
24. 24. a shelf according to one of the items 1 to 23, characterized in that when the shelf is raised, the rear wall (3) is inclined at an angle of 1 ° to 3 ° from the vertical to a side facing away from the shelf (2) and / / or the base (8) is inclined at an angle of 2 ° to 4 ° from the horizontal away from the rear wall (3),
25. 25. a shelf according to one of the items 1 to 24, characterized in that its height is between 60 cm and 3 m, its width between 30 cm and 1.5 m and / or its depth between 20 cm and 80 cm.

Claims (10)

1. Shelving unit made of a foldable flat material such as cardboard or similar, having a shelf support (1) and at least one push-in shelf (2), the shelf (2) having at least one flap (10) which is joined to the shelf (2) in an articulated manner by means of a folded edge, for the purpose of being inserted into a slit (11) in the shelf support (1),
   characterised in that
   the shelf (2) has a base (8) and wall pieces (9) that are joined to the base (8) by means of folded edges, in that the flap (10) is located on one of the wall pieces (9) or on an extension of one of the wall pieces (9), and in that, when the shelving unit is erected, the slit (11) is positioned above a level defined by the base (8), the slit (11) being at a point at which the shelf support (1) has at least two layers, so that the flap (10) is, after insertion, positioned between two layers.
2. Shelving unit as in claim 1,
   characterised in that
   the folded edge which joins the flap (10) to the shelf (2) lies up against one edge of the slit (11).
3. Shelving unit as in claim 1 or 2,
   characterised in that
   the shelf (2) has at least two flaps (10) on lateral wall pieces (9) or on extensions of lateral wall pieces (9).
4. Shelving unit as in one of claims 1 to 3,
   characterised in that
   the shelf support (1) has two side walls (4) which are preferably joined to the rear wall (3) by means of folded edges and which preferably form essentially a right angle with this wall.
5. Shelving unit as in claims 3 and 4,
   characterised in that
   each of the two side walls (4) has a slit (11) to accept a flap (10), which slit is positioned, when the shelving unit is erected, above a level defined by the base (8).
6. Shelving unit as in one of claims 1 to 5,
   characterised in that
   the shelf support (1) has, when the shelving unit is erected, a horizontal cross-section of a convex polygonal, preferably rectangular, shape, which is formed by outer walls that are joined together preferably by folded edges.
7. Shelving unit as in claim 6,
   characterised in that
   it has an internal profile (16) inserted into a hollow space enclosed by the outer walls, which profile has a cross-section that is essentially the same as the cross-section of the shelf support (1), the internal profile (16) consisting essentially of walls that are joined together by means of folded edges.
8. Shelving unit as in one of claims 1 to 7,
   characterised in that
   the slit (11) for the insertion of a flap (10) of the shelf (2) has a vertical position or lies at an angle from the vertical.
9. Shelving unit as in one of claims 1 to 8,
   characterised in that
   the shelf support (1) has a back wall.
10. Construction kit for a shelving unit as in one of claims 1 to 9.

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