EP2551209A1 - Stackable platform - Google Patents

Abstract

The stackable platform (20) comprises a support plate (21) made of wood, plastic, paper, cardboard and/or paperboard material, having an opening (3) to which a hollow frustoconical foot element (4) made of wood, plastic, paper, cardboard and/or paperboard material, is fixed through grip force. The opening is defined between the top portion and the bottom portion of the support plate, such that frictional connection is produced by the interference fit between the cut surface of the support plate and the surface area of foot element.

Description

Technical area

The invention relates to a stackable cargo carrier with a support plate having a through opening, wherein in the opening a frusto-conical and substantially hollow foot member is attached.

State of the art

Stackable pallets are known in the art and are often used.

The DE 10 2007 054 689 A1 describes the manufacture of a pallet from a multi-layer plate and a plurality of foot elements, which are provided in openings of the plate. The foot elements are inserted from above into the openings of a lower part of the plate and glued over tabs on it. Subsequently, the upper part of the plate is mounted, wherein the openings in the upper part are smaller than the diameter of the foot elements, so that the openings have a shoulder against which rest the foot elements and so a portion of the load on the upper edge of the foot elements on the upper Transfer part of the plate. In addition, the plate is glued on tabs that protrude into the interior of the foot elements.

A corresponding product with a reduced diameter of the opening in the uppermost layer of the support plate is in the DE 103 12 420 B3 and the EP 1 702 853 B1 described.

Similarly constructed is the stackable cargo carrier of DE 20 2004 015 025 U1 , In addition, tabs are provided on the outer surfaces of the foot elements, which guarantee a distance between the inner surface and the outer surface of the nested foot elements of the stacked load carrier in stacked load carriers. These tabs prevent the stacked pallets from jamming.

From the US 3,664,272 is a stackable cargo carrier consisting of a support plate and a plurality of base elements formed by hollow elements known in which in the region facing away from the support plate foot has a plurality, concentrically arranged about the longitudinal axis of the respective foot and provided on the inside of the foot longitudinal ribs.

Finally is from the US 5,769,001 a stackable cargo carrier known in which are provided on the outer surface of at least individual feet of the stackable cargo carrier formed by hollow slats spacers. Parts of these load carrier are made in a drawing process.

The EP 0 785 143 B1 describes a load carrier with a cup-shaped foot element, wherein the cup has at its upper end a kind of flange paragraph, which can be installed between the individual layers of a carrier plate.

These pallets all have the disadvantage that, in order to ensure a sufficient load capacity and stability of the pallet, a large, achieved by the bonded tabs contact surface between the support plate and the foot elements or an additional paragraph within the layers of the support plate for supporting the Need foot elements. Thus, the production of such pallets is enormously complex, since first the foot elements must be used in a first part of the support plate, there must be glued to corresponding tabs, the support plate must be completed, in which case the paragraphs are made, and finally further tabs glued Need to become. In addition, the glued elements must be fixed for curing for a certain time.

Presentation of the invention

The object of the invention is to provide a the aforementioned technical field associated stackable cargo carrier, which is easier to manufacture and yet can carry sufficiently high loads.

The solution of the problem is defined by the features of claim 1. A stackable load carrier comprises, as mentioned, a support plate having a through opening and a foot element which is fixed in the opening. The foot member is frusto-conical and substantially hollow. According to the invention, the foot element is fixed in the opening by means of frictional connection. This is in contrast to the prior art, where the foot elements in the openings are essentially fastened in the support plate via fabric (adhesive bonds) or positive fit (heels).

Under a support plate is understood in the context of the invention, a flat planar object having a suitable support surface to receive loads. In most cases, the support plate has a rectangular basic shape, but it can also be configured in a different form, for. B. round or triangular. But it can also be shaped application-specific. In addition, the corners may each remain, but the support plates may also have rounded corner. The latter is an advantage if goods must be secured on the load carrier. For this film (shrink film) is often used, which easily penetrates at corners. The support plate has a through opening through its entire thickness.

The foot member is formed in the shape of a truncated cone, that is in the form of a truncated cone. Here, the cone may be a straight or an oblique cone and the base of the cone may have any shape, with a straight cone with a regular base, such as an ellipse or a regular polygon, is advantageous because the foot elements so best together can be stacked. Straight, circular truncated cone-shaped foot elements have proven best, since they are well stackable and whose orientation during assembly in the support plate by their rotational symmetry plays no role. The larger round surface is the base, the smaller the top surface. The third surface is called the lateral surface. The frusto-conical foot element is substantially hollow. Thus, at most a part of the volume of the foot element is filled. In the context of the invention, the foot element is designed such that it is hollow and open at least in the area of the base, d. H. the base is not physically or at least not completely present. Thus, several foot elements can be at least partially stacked. So that the foot elements can be stacked as far as possible, they can also be hollow in the region of their top surface and without a continuous, physical cover surface.

The tapered foot element is stackable by its shape with other equally formed foot elements. The foot elements can be stacked as individual elements before assembly. But finished load carrier can be designed with such Foot elements are stacked. This results in a lower transport and storage volume.

The foot element is fixed in the opening of the support plate by means of frictional connection. In this case, such a great adhesion is created between the elements to be connected that they are prevented from moving towards each other up to a certain limit load. For this it is necessary that the elements to be connected touch under a certain pressure, so that they are held by the static friction.

It is advantageous that the inventive stackable cargo carrier can be made in a simple step from a prefabricated support plate with an opening and a prefabricated foot element. The size of the opening and the size of the foot element are matched to one another such that the foot element - in that region in which it is in contact with the support plate after assembly - at least partially larger than the opening. The assembly of the load carrier is thus easy by the foot element is pressed with a certain force in the opening. The adhesion is achieved by the static friction between foot element and support plate.

The opening of the plate passes through the entire thickness of the support plate. It is defined by a lying between an upper side and an underside of the support plate cut surface. The course of the cut surface and thus the shape of the opening are in this case matched to the shape of the foot element. In the case of a straight frustoconical foot element, the opening is likewise designed in a circle with a circular-cylindrical or frustoconical surface. In the simplest case, an opening is cut, punched or pressed into an existing panel, and the hole filling is removed. The resulting surface in the inner region of the support plate corresponds to the cut surface. But it is also possible to provide the opening already in the production of the plate. This is particularly advantageous for materials that are sprayed or cast. In multi-layer support plates, the openings can also be made by providing the individual layers before merging with openings and the layers are then assembled properly.

The nature of the cut surface depends strongly on the material of the support plate. A support plate made of a solid material will have a nearly uniform surface finish of the cut surface. For a porous or pitted material, the cut surface will reflect the construction of the material. Also, the way in which the opening is provided plays a role in the nature of the cut surface.

Basically, tabs or similar extensions may be provided on the support plate or on the foot element, which contribute after the press-fitting of the foot member in the support plate a certain contribution to the frictional connection between the foot element and the support plate. With a suitable dimensioning of the openings, however, this is superfluous, so that in a preferred embodiment of the invention, the frictional connection between the support plate and foot element exclusively between a region of the cut surface of the support plate and a surface region of the foot member, which corresponds to a portion of the shell is made. It is within the scope of the invention that during the assembly of the foot member by the frictional forces small areas of the plate material are folded over in the interface area and rest on the surface of the foot member. It can also happen that such bent-over areas arise close to one of the plate surfaces and protrude beyond them, so that they can be seen from the outside as a small, at least partially encircling collar. Such collars arise in the course of the manufacturing process, contribute not or only slightly to the nature of the connection and are not to be confused with the known from the prior art tabs that are specially formed on the support plate or on the foot elements.

Particularly preferably, the adhesion is produced by a press fit. The foot element has a larger diameter in the surface area at which the frictional connection is provided, than the opening of the support plate before attaching the foot element. The foot element is pressed into the opening, and there is a connection of the two elements, which is based solely on the fact that the two elements can not move against each other by the mutual static friction at their points of contact.

But it is also possible to provide a traction, are used in the intermediate parts to prevent direct contact between the support plate and foot element. So z. Example, a sleeve between the two elements to be connected are used, so that the adhesion is not made directly between the foot member and the support plate, but on the one hand between the foot member and the sleeve and on the other hand between the sleeve and the support plate.

In a further preferred embodiment, the foot element is in addition to the frictional connection by a material bond, such as a bond, fixed in the opening of the support plate. A suitable adhesive is applied in the area of the cut surface. It can be distributed over the entire area. But it may also be advantageous if the adhesive is only partially applied to the cut surface, z. B. in regular glue spots or in a line along the cut surface.

Preferably, the adhesive may also be applied to an area of the foot element to be attached.

The adhesive is advantageously matched to the materials to be joined. In the case of a cardboard-like material, this may be, for example, a dispersion adhesive such as a white glue. In another embodiment, it is provided to use a polyurethane adhesive (PU adhesive). It has been shown that it is especially for the bonding with foaming adhesives advantageous if the cut surface has recesses into which the adhesive can be submitted. During the subsequent bonding, not a large part of the adhesive is displaced outwards in this way.

In this type additionally bonded load carrier are characterized by an increased load capacity.

Preferably, the support plate made of wood, plastic, paper, cardboard and / or cardboard material is produced, but also other materials are conceivable. Particularly preferably, the support plate made of paper, cardboard and / or cardboard material.

By paper, board and / or cardboard material is meant any flat material made of paper, cardboard or cardboard. Cardboard is usually made of layers of paper of different thickness and possibly of different material. Usually, the layers are pressed together without the use of adhesive, but there are also glued boxes. With a grammage of 150 - 600 g / m ² cardboard is between the materials paper and cardboard. From a grammage of more than 600 g / m ² , which corresponds approximately to a thickness of 1.5 mm, it is cardboard. The material may be single or multi-layer or wavy.

A support plate is preferably formed from one of these materials. But the invention also includes support plates, which consist of at least two materials.

In a preferred embodiment, the support plate comprises a plurality of layers, which are in particular two, three or four layers. Most preferably, there are three-day support plates.

A three-layer support plate has a particularly good stability and load capacity in relation to their weight. Plates with fewer layers, ie with two layers or even only one, can be loaded significantly less. U. U. but meets the demands made on the cargo carrier requirements. Such a support plate is then relatively easy. A support plate with more than three layers has in relation to only small improvements in stability, but is made more difficult by the additional layers. However, it may be advantageous to use such more stable support plates.

Particularly preferred is each layer of a support plate made of cardboard. In particular, the layers of corrugated board.

Corrugated board is particularly light and relatively stable. In the simplest case, it consists of at least one smooth and one corrugated paper web (one-sided corrugated board). Normally, smooth and corrugated paper webs are glued together alternately, corrugated boards with up to seven layers are usual, ie with four layers of smooth paper and three layers of corrugated paper (three-walled cardboard).

It can also be provided support plates, which have one layer or more or all layers of a different material.

In particular, the support plate is formed from a single piece of cardboard by folding. Such a support plate has an increased stability. In addition, the cutting of the individual layers is eliminated during their production.

However, it is also within the scope of the invention provide support plates that have been made from individual layers. If very large plates are produced, it can be impractical to work with too large elements. The thickness of a single layer can also play a role. If a single layer is too thick, it can no longer be folded neatly. It is then advantageous to make the support plate from several individual layers.

It can also be used support plates containing layers that have been formed by folding, and in addition have individual tailored layers.

In an advantageous embodiment of the invention, the diameter of the opening in the support plate before fixing the foot elements over the entire thickness of the support plate is constant. When making the opening by punching, cutting o. Ä. So a cylindrical hole filling is removed. It is easy to provide such an opening. The preparation of a support plate with such an opening designed is therefore inexpensive.

It is also within the scope of the invention to provide the opening such that they z. B. in the middle between the top and bottom of the support plate, a grooved or groove-shaped recess for an expanding adhesive. Overall, however, before the attachment of the foot elements, the opening at the top of the support plate is the same size as the opening on its underside.

The support plate has in this case before the introduction of the foot member to an opening with a diameter which is smaller than the diameter of the foot member in the surface region, which participates in the adhesion after the introduction of the foot member is. By introducing the foot element, the opening is at least partially widened, so that it has a modified shape in the mounted state.

In a further preferred embodiment, the opening of the support plate is funnel-shaped prior to fastening of the foot elements; it has a larger diameter at the top of the support plate than at the bottom. A corresponding hole filling thus has the shape of a truncated cone.

The opening is smaller at the top of the support plate than the diameter of the foot element in the respective surface area, which is involved in the adhesion after the attachment of the foot member.

A funnel-shaped opening in the support plate is more complex to produce. However, it facilitates the introduction of a foot element, since less pressure must be exerted during assembly. In addition, a more even pressure in the area of the cut surface can be achieved after assembly. Especially with support plates made of rigid materials, this shape of the opening is advantageous.

Preferably, a load carrier according to the invention comprises at least two, preferably four to ten foot elements. But it can also be provided only one foot element or more than ten foot elements. The foot elements are fastened in a corresponding number of openings in the support plate. The support plate may have additional openings in which no foot element is provided. The foot elements are distributed as evenly as possible on the support plate.

It is advantageous if the height of the foot elements and their arrangement are selected on a plate such that the load carrier can be lifted by a pallet truck / forklift. Such trained load carriers are suitable for the transport and storage of stacked products of various kinds.

The foot elements are made of wood, plastic, paper, cardboard and / or cardboard material. Particularly preferably, they are made of cardboard. They are robust, withstand high loads and are recyclable.

For particularly high loads or for use in high humidity such. B. in greenhouses but also foot elements made of other materials such as plastic or metal can be selected.

Optionally, the load carrier has a spacer. This spacer is preferably located on the underside of the support plate in the range of one or more foot elements. This spacer keeps the stacked load carriers in a certain minimum distance from each other and thus facilitates the removal of the individual load carrier from a stack. Under a certain pressure, z. B. under the dead load of the pallet stack, the individual load carrier can otherwise wedge and then be separated only with great effort. They may also be damaged.

The spacer may be in the form of a tab formed from a lowermost layer of a support plate. This tab contributes not or at most extremely insignificant to connect the support plate and the respective foot element together. Rather, it facilitates the separation of two load carriers.

Alternatively, the spacer can also consist of a separate wedge-shaped element which is fastened to the underside of the support plate.

The spacer may also be located at the top of the support plate.

In a preferred variant of the load carrier, the upper edge of the foot element closes with the top of the support plate. This means that the area of the lateral surface of the foot element, which is in contact with the support plate, corresponds in its height to the thickness of the plate and is at the top at the top of the foot element.

However, it may also be advantageous if a certain portion of the foot element projects beyond the top of the plate. So this protruding part of the foot element z. B. serve as a mounting point for possible structures.

It is also quite possible to let the foot elements protrude only partially from below into the openings of the support plate. So it is conceivable that a very specific foot height is achieved by this, without other foot elements must be made.

In a method for producing a load carrier, in particular a load carrier as described above, a frusto-conical and substantially hollow foot element is fixed in a through opening of a support plate. According to the invention, the foot element is fastened in the opening by means of frictional connection.

This method is extremely simple to carry out, since only a prefabricated foot element has to be fastened in a corresponding opening of a prefabricated support plate. Otherwise, no further work steps are necessary.

Particularly preferred in this method, a support plate is used, the opening is defined by a lying between an upper side and an underside of the support plate cut surface. The surface created in making the opening in the inner region of the support plate corresponds to the cut surface, or it was already formed when molding the plate by molding or spraying the material into a corresponding shape. The frictional connection between the support plate and foot element is produced exclusively between a region of this sectional surface of the support plate and a surface region of the foot element which corresponds to a region of the jacket.

Optionally, an adhesive is applied before the introduction of the foot element in a region of the cut surface or in a surface region of the foot element. Subsequently, the foot element is fixed in the opening of the support plate. The adhesive strengthens the cohesion of the support plate and the foot element. Thus, in addition to the adhesion, a material connection between the foot element and the support plate is produced.

The method may have a further step in which an additional outer layer is attached to the support plate of a finished load carrier as an outer cover. This outer layer consists of a material that z. B. can be easily printed. The outer layer may extend over large areas of the support plate. Nevertheless, at least recesses must be provided in areas of the openings, so that the Cargo carrier can continue to be stacked. In this case, the opening or the openings of the additional outer layer may be formed such that it rests on the upper edge of the foot member at least partially. However, the additional outer layer still offers no significant contribution to the attachment of the foot element or the foot elements in the support plate of the load carrier, a possibly occurring positive locking is not relevant to its load capacity.

From the following detailed description and the totality of the claims, further advantageous embodiments and feature combinations of the invention result.

Brief description of the drawings

Fig. 1

einen erfindungsgemässen Ladegutträger umfassend eine Tragplatte mit einer Öffnung, in der ein kugelstumpfförmiges Fusselement angebracht ist;

Fig. 2a,b

den Aufbau eines hohlen und eines partiell hohlen Fusselements;

Fig. 2c

einen Querschnitt durch ein speziell gestaltetes Fusselement;

Fig. 3a,b

alternative Grundformen von Tragplatten;

Fig. 4a,b

die Seitenansicht einer einlagigen bzw. drei-lagigen Tragplatte;

Fig. 5

eine Schnittfläche einer Öffnung;

Fig. 6

einen typischen Ladegutträger mit einer rechteckigen Tragplatte mit vier Öffnungen mit jeweils einem Fusselement;

Fig. 7a,b

eine alternative Ausführungsform mit einer rechteckigen Tragplatte mit sechs Öffnungen und mit sechs bzw. vier Fusselementen;

Fig. 8a-c

relative Positionen eines Fusselements in einer Öffnung;

Fig. 9a,b

das Anbringen eines Fusselements an einer Tragplatte mit einer Öffnung, die im Durchmesser konstant ist;

Fig.10a,b

das Anbringen eines Fusselements an einer Tragplatte mit einer trichterförmigen Öffnung;

Fig. 11 a,b

zwei Ladegutträger mit Abstandshaltern.

Grundsätzlich sind in den Figuren gleiche Teile mit gleichen Bezugszeichen versehen.The drawings used to explain the embodiment show:

Fig. 1

a cargo carrier according to the invention comprising a support plate having an opening in which a ball-shaped foot element is mounted;

Fig. 2a, b

the construction of a hollow and a partially hollow foot member;

Fig. 2c

a cross section through a specially designed foot element;

Fig. 3a, b

alternative basic forms of support plates;

Fig. 4a, b

the side view of a single-layer or three-layer support plate;

Fig. 5

a sectional area of an opening;

Fig. 6

a typical load carrier with a rectangular support plate with four openings, each with a foot element;

Fig. 7a, b

an alternative embodiment with a rectangular support plate with six openings and six or four foot elements;

Fig. 8a-c

relative positions of a foot member in an opening;

Fig. 9a, b

attaching a foot member to a support plate having an opening which is constant in diameter;

Figure 10a, b

the attachment of a foot member to a support plate having a funnel-shaped opening;

Fig. 11a, b

two load carriers with spacers.

Basically, the same parts are provided with the same reference numerals in the figures.

Ways to carry out the invention

Fig. 1 shows a first inventive load carrier 1. It consists of a rectangular support plate 2, which has an opening 3 in its center. In the opening 3, a frustoconical foot element 4 is fixed, for example, pressed.

Fig. 2a shows a frusto-conical hollow foot member 4 and its geometry. The foot member 4 has two circular surfaces which are aligned parallel to each other at a distance h. The area with the larger radius R corresponds to the base area 5, while the area with the smaller radius r is referred to as the top area 6. The distance h between the two surfaces corresponds to the height of the foot element 4. The outer surface between the two surfaces is referred to as lateral surface 7 and has a surface line m.

The foot member 4 may, for. B. have a height h of 12.5 cm, at a radius R of the base 5 of 4.6 cm and a radius r of the top surface of 2.9 cm. The foot member 4 is hollow, d. H. it consists only of a lateral surface 7. This lateral surface 7 has a certain wall thickness 8, z. B. 0.4 cm.

Fig. 2b shows a partially filled foot element 9, which is not continuous hollow. A portion 10 of the truncated cone volume on the side of the top surface 6 is made of a material. Towards the base surface 5, the foot element 9 is hollow, so that several elements constructed in this way can be stacked in one another.

In Fig. 2c, a particularly preferred foot member 42 is shown. The edges 43 of this foot element 42 on its side with the smaller diameter r are curved inwards. This design provides greater stability.

Fig. 3a, b show alternative basic forms of support plates. In contrast to the rectangular support plate 2 in Fig. 1 is the support plate 11 in the Fig. 3a circular. It has in its center an opening 3 for attaching a foot element. In the Fig. 3b a triangular support plate 12 is shown. This has three openings 3 for attaching foot elements. These are each arranged in the corners. But it is also conceivable that they are provided in the middle of the edges. In a large measure of the triangular support plate, a further foot element can also be provided in the middle of the plate.

Fig. 4a, b each show a cross section through a support plate. In Fig. 4a is a single-layer support plate 13 with a plate thickness d shown. In contrast, in Fig. 4b a three-layer support plate 14 constructed. This consists of three layers, each consisting of a different material A, B, C. These are z. For example, cardboard (A), wood (B) and cardboard (C). These layers can each have the same thickness or be different strength. It is also possible that a material, for. As cardboard, forms the layers in different thicknesses. Likewise, all three layers can consist of one material of one thickness. The individual layers are pressed together and / or glued together. A three-ply board made of corrugated cardboard can z. B. have a thickness d of about 2 cm.

In Fig. 5 schematically a cross section through a support plate 2 is shown, and it is the sectional area 15 is shown, which is located between the top 16 and bottom 17 of the support plate 2 and the boundary of the opening 3 represents. The cut surface 15 extends over the entire plate thickness d. About this cut surface 15 of the opening 3 of the adhesion to a foot element is made.

Fig. 6 shows a typical load carrier 20 with a rectangular support plate 21 with four openings 3, each with a foot element 4. The support plate 21 is z. B. 60 x 40 x 2 cm large. The four openings 3 are provided near the corners. In each opening a foot element 4 is attached.

Fig. 7a, b show two further inventive load carrier 22 and 23. Both load carrier have a rectangular support plate 24, which has a total of six openings 3. The cargo carrier 22 has in each of the six openings 3 in each case a foot element 4. In contrast, 3 foot elements 4 are mounted in the cargo carrier 23 only in four of the six openings.

In Fig. 8a-c three possibilities for a frictional connection between a region of the sectional surface 15 of the support plate 2 and a surface region of the foot member 4 are shown. The examples differ in the relative arrangement of the two elements.

In Fig. 8a not the entire area of the cut surface 15 is used. The foot member 4 is recessed in the support plate 2. The adhesion 30 takes place only over part of the support plate thickness. In Fig. 8b the foot element is mounted such that it concludes with its upper edge with the top of the support plate 2. The adhesion takes place over the entire cut surface 15 of the support plate. The corresponding surface area of the foot member 4 is the uppermost portion. It is also possible to press the foot element 4 less deeply into the support plate 2, so that the upper edge of the foot element 4 projects beyond the upper side of the support plate 2. This situation is in Fig. 8c displayed. The adhesion 30 takes place over the entire sectional area 15 of the support plate and over a surface area of the foot element 4, which does not correspond to the uppermost region of the foot element 4.

In Fig. 9a, b the attachment of a foot member 4 is shown in the opening 40 of a support plate 2, wherein the opening 40 before attaching the foot member 4 has a cylindrical diameter. This means that the diameter of the opening 40 in the support plate 2 is constant over the entire thickness d of the support plate 2 before fastening the foot element 4. The diameter of the opening 40 is smaller than the diameter of the foot element in the surface area, which will be involved in the adhesion after attachment of the foot member 4 ( Fig. 9a ). When attaching the foot member 4, z. B. by pressing, the opening is widened and thus permanently deformed ( Fig. 9b ). The attachment of a foot member 4 on a support plate 2 with a funnel-shaped opening 41, however, in Fig. 10a, b shown. The opening 41 has at the top of the support plate 2 has a larger diameter than at the bottom. The opening 41 is at the top of the support plate 2 is a little smaller than the diameter of the foot member 4 in the respective surface region, which is involved in the adhesion after the attachment of the foot member 4 ( Fig. 10a ). By attaching the foot element, the opening may be slightly widened, but not fundamentally changed in shape ( Fig. 10b ).

In Fig. 11a a load carrier 50 is shown, which has a wedge-shaped spacer 52 on the underside of its support plate 51 in the region of the attached foot element 4. When stacking, the spacer 52 prevents the individual load carriers 50 from becoming wedged together. In contrast, in the Fig. 11b a load carrier 53 is shown, whose spacer 54 is formed as a tab, formed from a lower layer of the support plate 51.

The abovementioned exemplary embodiments are to be understood merely as illustrative examples, which can be modified as desired within the scope of the invention.

So also more basic plate shapes or larger or smaller plates are used. The dimensions of the foot elements can also be varied.

Partially filled foot elements can be mounted on the support plates which, in comparison to the hollow foot elements, have a greater stability and / or a better stability through a lower center of gravity. This is especially advantageous for load carriers with only one foot element.

The arrangement of the foot elements can be designed arbitrarily. They can be provided in particular at the corners and edges of the support plates. At high loads, foot elements in the middle of the support plate are an advantage.

In summary, it should be noted that the present stackable load carrier is easy to assemble from prefabricated elements, yet it has a sufficiently high stability and carrying capacity.

Claims (18)

A stackable load carrier (1) comprising a support plate (2) having a through opening (3) and a foot element (4) fixed in the opening, the foot element being frusto-conical and substantially hollow, characterized in that the foot element (4) in the opening (3) is attached by means of frictional connection. Stackable cargo carrier according to claim 1, characterized in that the opening (3) by a between a top (16) and a bottom (17) of the support plate (2) lying cut surface (15) is defined and the frictional connection exclusively between a region of the cut surface (15) of the support plate (2) and a surface portion of the foot member (4) is made. Stackable cargo carrier according to one of claims 1 - 2, characterized in that the adhesion is produced by a press fit. Stackable cargo carrier according to one of claims 1 - 3, characterized in that the foot element (4) is additionally secured by a material bond, such as a bond, in the support plate (2). Stackable load carrier according to one of claims 1 - 4, characterized in that the support plate (2) made of wood, plastic, paper, cardboard and / or cardboard material is made, preferably from paper, cardboard and / or cardboard Material exists. Stackable cargo carrier according to claim 5, characterized in that the support plate (14) comprises a plurality of layers, which are in particular two, three or four, preferably three layers. Stackable cargo carrier according to claim 6, characterized in that each layer of cardboard, in particular of corrugated board, consists. Stackable cargo carrier according to claim 7, characterized in that the support plate (2) comprises a single piece of folded cardboard. Stackable cargo carrier according to one of claims 1 - 8, characterized in that the opening (3) of the support plate (2) before fixing the foot elements (4) has a constant diameter over an entire thickness (d) of the support plate (2). Stackable cargo carrier according to one of claims 1 - 8, characterized in that the opening (3) of the support plate (2) is funnel-shaped prior to fastening of the foot elements (4) and widens towards the top (16). Stackable cargo carrier according to one of claims 1 - 10, characterized in that it comprises at least two, preferably four to ten foot elements (4) which are fixed in a corresponding number of openings (3). Stackable cargo carrier according to one of claims 1 - 11, characterized in that the foot elements (4) made of wood, plastic, paper, cardboard and / or cardboard material are made, preferably made of cardboard. Stackable load carrier according to one of claims 1 - 12, characterized in that on the underside (17) of the support plate (2) in the region of a foot member (4) each have a spacer (52) is provided, wherein the spacer (52) preferably as out a position of the support plate shaped tab is formed. Stackable cargo carrier according to one of claims 1 - 13, characterized in that an upper edge of the foot element (4) with the top (16) of the support plate (2) closes. A method for producing a stackable cargo carrier, in particular according to one of claims 1-14, characterized in that a frusto-conical and substantially hollow foot element (4) in a through opening (3) of a support plate (2) is fixed by means of frictional connection. A method according to claim 15, characterized in that the opening (3) is defined by a between a top (16) and a bottom (17) of the support plate (2) lying sectional area (15) and the frictional connection exclusively between a region of a cut surface ( 15) of the support plate (2) and a surface portion of the foot member (4) is produced. Method according to one of claims 15-16, characterized in that in a surface region of the foot member (4) adhesive is applied before the foot member (4) in the opening (3) of the support plate (2) is attached. Method according to one of claims 15-17, characterized in that an outer lining is attached.

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