Transport system

Abstract

Transport system (26) for transporting loads on a loading floor (27) of a commercial vehicle (28), comprising at least one anti-slip mat (29) that can be arranged on the loading floor (27), at least one small load carrier layer (32) that can be arranged directly or indirectly on the anti-slip mat (29) and is made up of small load carriers (33) that are designed to be stackable and partially vertically interlocking, in particular Euro boxes, and a plurality of lids (1, 15, 18, 20, 24, 25) that can be placed on small load carriers (33) of an uppermost small load carrier layer (32) for covering upper sides of the small load carriers (33) of the uppermost small load carrier layer (32), wherein a separate lid (1, 15, 18, 20, 24, 25) is provided for each small load carrier (33) of the uppermost small load carrier layer (32), and the Covers (1, 15, 18, 20, 24, 25) are designed and arranged in such a way that the respective cover (1, 15, 18, 20, 24,25) engages in a form-fitting manner in the respective small load carrier (33) and edges of lids (1, 15, 18, 20, 24, 25) arranged adjacent to one another each engage with one another via at least one form-fitting arrangement acting in an arrangement plane of the lids (1, 15, 18, 20, 24, 25).

Description

[0001] The invention relates to a transport system for transporting cargo on a loading floor of a commercial vehicle.

[0002] A load for transport by a commercial vehicle, such as a van or a truck, can be composed of a variety of components, for example, small loads that are usually not transported individually but rather in batches. Furthermore, several batches may be transported that differ from one another in the design of the small load components.

[0003] It is common practice to use standardized and stackable small load carriers, also known as Euro crates, Euronorm containers, or Euronorm boxes, for holding and transporting small loads. Such loaded small load carriers can be placed, for example, on the loading floor of a commercial vehicle. The small load carriers should be secured against slipping on the loading area while the commercial vehicle is in motion. Furthermore, stacked small load carriers should be secured against tipping over while the commercial vehicle is in motion.

[0004] It is an object of the invention to provide a novel transport system of the type mentioned at the outset, with which the transport of loaded small load carriers is possible more safely.

[0005] This object is achieved by independent claim 1. Advantageous embodiments are set out in the dependent claims, the following description and the figures, wherein these embodiments, each taken individually or a combination of at least two of these embodiments with one another, can represent an advantageous and / or further developing aspect of the invention.

[0006] A transport system according to the invention for transporting cargo on a loading floor of a commercial vehicle has at least one anti-slip mat that can be arranged on the loading floor, at least one small load carrier layer that can be arranged directly or indirectly on the anti-slip mat and is made up of small load carriers, in particular Euro boxes, that are designed to be stackable and partially vertically interlocking, and a plurality of lids that can be placed on small load carriers of an uppermost small load carrier layer for covering upper sides of the small load carriers of the uppermost small load carrier layer, wherein there is a separate lid for each small load carrier of the uppermost small load carrier layer and the lids are designed and can be arranged in such a way that the respective lid engages in a form-fitting manner in the respective small load carrier and edges of lids arranged adjacent to one another each engage with one another via at least one form-fitting arrangement acting in an arrangement plane of the lids.

[0007] According to the invention, the at least one anti-slip mat that can be placed on the loading floor of the commercial vehicle can reliably ensure that the load carriers do not slip relative to the loading floor of the commercial vehicle while the commercial vehicle is traveling. Suitable mats are defined, for example, by the VDI 2700 guideline, Sheet 15. The anti-slip mat can be made partially or entirely of an elastic plastic, such as rubber. Mats made of bonded rubber granulate, such as polyurethane-bonded rubber granulate, are particularly suitable. The transport system according to the invention can also have two or more anti-slip mats that can be arranged accordingly on the loading floor.

[0008] The small load carriers can also rest against each other laterally, thus securing each other against slipping relative to the loading floor. If stacking small load carriers creates two or more layers of small load carriers, individual stacks of small load carriers can also rest against each other laterally, thus securing each other against tipping over. Because the small load carriers are stackable and can sometimes be inserted vertically into one another with a form-fitting fit, the small load carriers in a stack of small load carriers are also particularly well secured against slipping relative to each other.

[0009] The at least one small load carrier layer or the lowest small load carrier layer can be placed directly on the anti-slip mat. Alternatively, the at least one small load carrier layer or the lowest small load carrier layer can be arranged indirectly on the anti-slip mat via at least one further component of the transport system, wherein at least one further anti-slip mat is then preferably arranged between the at least one small load carrier layer or the lowest small load carrier layer and the further component of the transport system in order to reliably prevent the small load carriers from slipping relative to the further component of the transport system.

[0010] The lids that can be placed on the small load carriers of the at least one small load carrier layer or the uppermost small load carrier layer are designed in such a way that by placing the respective lid on the respective small load carrier, a positive connection can be established between the lid and the small load carrier in the connection plane between the lid and the small load carrier, whereby it can be prevented that the lid slips relative to the small load carrier.

[0011] Because the lids are also designed and can be arranged in such a way that edges of lids arranged adjacent to one another each engage with one another via at least one positive connection acting in one arrangement plane of the lids, adjacently arranged small load carriers or adjacently arranged stacks of small load carriers are, in a sense, hooked together via the lids arranged thereon, whereby adjacently arranged small load carriers or adjacently arranged stacks of small load carriers are combined to form a rigid assembly. This also reliably secures the small load carriers or small load carrier stacks against slipping and tipping over. To form the respective positive connection between two adjacently arranged lids, the interlocking edges of the two lids can, for example, have a toothing or the like.

[0012] The transport system according to the invention for transporting cargo on a loading floor of a commercial vehicle meets the official requirements for securing cargo on a loading floor of a commercial vehicle according to a test carried out by a third party.

[0013] According to an advantageous embodiment, the transport system comprises at least one pallet, via which a bottommost small load carrier layer can be arranged indirectly on the anti-slip mat, with at least one further anti-slip mat being arranged between the pallet and the bottommost small load carrier layer. This creates a compact transport unit consisting of the pallet, the anti-slip mat arranged thereon, the small load carriers arranged thereon, and the lids arranged thereon. The pallet simplifies the loading and unloading of the commercial vehicle, since this transport unit and thus the small load carriers can be lifted onto and removed from the loading floor by means of an industrial truck or the like, without the small load carriers having to be handled individually. The pallet can have standardized dimensions and be designed, for example, as a Euro pallet.

[0014] According to a further advantageous embodiment, the transport system has at least one tensioning belt that can be placed over at least two adjacent covers for securely tensioning the assembly comprising the anti-slip mat, the small load carriers, and the covers to the loading floor. The assembly can additionally comprise the aforementioned pallet and the aforementioned additional anti-slip mat. The tensioning belt can be secured, for example, to floor-level tensioning eyes or the like of the commercial vehicle. The tensioning belt can be used to press the assembly against the loading floor to increase the static friction between the components of the assembly. Furthermore, the assembly can be secured with the tensioning belt against slipping and / or tipping in the transverse direction of the vehicle.

[0015] The lids engage with the respective small load carriers in a form-fitting manner. This has the advantage that the small load carriers do not suffer any deformation, especially horizontally, due to the tensioned tensioning strap. The lashing forces are maintained. Furthermore, the form-fitting engagement of the lids prevents them from slipping.

[0016] According to a further advantageous embodiment, the small load carriers can be arranged in such a way that they form at least single-layered small load carrier rows, with at least one separate tensioning strap being provided for each small load carrier row. This further increases the effectiveness of load securing.

[0017] According to a further advantageous embodiment, at least one small load carrier is designed as a folding container. This allows the small load carrier to be folded when not in use, thus reducing its space and allowing it to be stored for the next use.

[0018] According to a further advantageous embodiment, the covers are substantially rectangular, wherein each cover is provided on the edge side circumferentially in at least indirect alternation with connecting recesses and connecting projections, by means of which the covers can be connected to one another in a form-fitting manner at the edge, wherein opposite sides of the respective cover are designed complementarily to one another, wherein each cover is provided on the edge side circumferentially with connecting geometries which are of the same design and are directly adjacent to one another circumferentially, wherein each connecting geometry is formed by a first edge section of the cover, a connecting recess, a connecting projection and a second edge section of the cover in this order, wherein the connecting recess of the respective connecting geometry is directly adjacent to the connecting projection of this connecting geometry.

[0019] The lids can be used to form a cover or intermediate floor on the small load carriers, on which objects, such as additional small load carriers, can be placed. The intermediate floor can be walkable, so that accessibility to the loading space of the commercial vehicle is less impaired by the small load carriers placed indirectly on the loading floor of the commercial vehicle. This allows for more optimal use of the loading space partially occupied by the small load carriers. To form the cover or intermediate floor, the lids can simply be placed on the small load carriers so that they interlock at the edges. This process can be carried out without the use of tools and is therefore very easy to implement. The small load carriers can be arranged directly next to one another or laterally spaced from one another.

[0020] Due to the presence of the connecting recesses and connecting projections on the edge of each cover, the cover is only essentially rectangular, not mathematically exactly rectangular. At least one cover can also be square, for example. In particular, the covers can be the same or different rectangular.

[0021] The fact that the connecting recesses and connecting projections of the respective cover are arranged circumferentially on the edge in at least indirect alternation is intended to mean that either a connecting projection immediately follows the respective connecting recess or that an edge section of the cover is arranged between the connecting recess and the connecting projection, so that the connecting projection only indirectly follows the connecting recess.

[0022] The connecting recesses and connecting projections of the lids can be designed in such a way that the lids, which are thereby positively connected to one another at the edges, cannot be separated from one another in their plane of extension, thereby making the cover or intermediate floor formed by the lids more robust. To separate the lids from one another, at least one of the lids must first be displaced transversely to its plane of extension, so that the positive connection between the lids is broken and the lids can be separated from one another.

[0023] Since opposite sides of the respective lid are designed to be complementary to each other, lids of the same design can be arranged in a row with or without offset and connected to each other.

[0024] According to an advantageous embodiment, the respective lid is larger in the area of ​​the connecting projections and smaller in the area of ​​the connecting recesses than the top surface of the respective small load carrier. This allows a lid resting on a small load carrier to also be supported on an adjacent small load carrier via its connecting projections, which engage in the connecting recesses of an adjacent lid. This allows, for example, a lid to be arranged in a somewhat suspended manner between two small load carriers arranged laterally spaced from one another, on which the lid rests only with its connecting projections.

[0025] According to a further advantageous embodiment, at least one connecting recess is dovetail-shaped, and at least one connecting projection is complementary to the dovetail-shaped recess. This creates a positive connection between the covers, preventing the two positively connected covers from separating in their plane of extension, thus making the cover formed by the covers or the intermediate floor formed by the covers more robust.

[0026] According to a further advantageous embodiment, the lids are of identical design. This allows the lids to be identical parts and thus be manufactured cost-effectively in large quantities.

[0027] According to a further advantageous embodiment, at least one securing recess is formed on an upper side of at least one lid facing away from the small load carrier to secure a small load carrier placed on the lid against slipping relative to the lid. The recess can be designed, for example, as a blind hole or as an opening, in particular a through-hole, that completely penetrates the lid.

[0028] According to a further advantageous embodiment, at least one lid is provided with at least one opening in the center, through which a handle portion of the lid extends, monolithically connected to the rest of the lid. The lid can be grasped and handled by its handle portion, which is located in the region of the lid's center of gravity, so that connecting lids to one another is not hindered by grasping an edge portion of the respective lid.

[0029] According to a further advantageous embodiment, an underside of at least one lid facing the small load carrier is smaller than the top side of the lid. This allows the underside of the lid to be inserted into the upper receiving opening of a small load carrier, forming a positive connection between the lid and the small load carrier, while the top side of the lid protrudes laterally beyond the top side of the small load carrier in the region of the connecting projections and thus rests on it. This secures the lid against slipping relative to the small load carrier. For example, a predetermined clearance can be provided between the underside of the lid and the surrounding side wall of the small load carrier in order to compensate for manufacturing tolerances.

[0030] According to a further advantageous embodiment, a circumferential step is formed between the top and bottom edges. The step can be formed by a single circumferential step on the edge of the lid. Alternatively, the lid can taper continuously from its top side toward its bottom side, i.e., be conical.

[0031] The lid can be made of one or more materials, such as wood, metal or plastic.

[0032] According to a further advantageous embodiment, at least one lid is at least partially constructed of chipboard, in particular flat-pressed board. This enables cost-effective production of a robust and lightweight lid.

[0033] According to a further advantageous embodiment, the chipboard is coated with a laminate on one or both sides. This makes the lid more robust against mechanical or chemical influences.

[0034] The invention is explained below by way of example with reference to the accompanying figures using preferred embodiments, wherein the features mentioned below can represent an advantageous and / or further developing aspect of the invention, both individually and in various combinations with one another. It shows: Fig. 1 a schematic and perspective representation of an embodiment of a transport system according to the invention; Fig. 1A is a schematic plan view of a top side of another embodiment of a cover of a transport system according to the invention; Fig. 1B is a schematic plan view of a bottom side of the Fig. 1A shown lid; Fig. 2A is a schematic plan view of a top side of another embodiment of a cover of a transport system according to the invention; Fig. 2B is a schematic plan view of a bottom side of the Fig. 2A shown lid; Fig. 3A is a schematic plan view of a top side of another embodiment of a cover of a transport system according to the invention; Fig. 3B is a schematic plan view of a bottom side of the Fig. 3A shown lid; Fig. 4A is a schematic plan view of an upper side of an embodiment of a cover of a transport system according to the invention; Fig. 4B is a schematic plan view of a bottom side of the Fig. 4A shown lid; Fig. 5A is a schematic plan view of a top side of another embodiment of a cover of a transport system according to the invention; Fig. 5B is a schematic plan view of a bottom side of the Fig. 5A shown lid; Fig. 6A is a schematic plan view of a top side of another embodiment of a cover of a transport system according to the invention; and Fig. 6B is a schematic plan view of a bottom side of the Fig. 6A shown cover.

[0035] In the figures, identical or functionally identical components are provided with the same reference numerals. A repeated description of such components may be omitted.

[0036] Fig. 1 shows a schematic and perspective illustration of an embodiment of a transport system 26 according to the invention for transporting cargo on a loading floor 27 of a commercial vehicle 28, wherein only a loading section of the commercial vehicle 28 is shown.

[0037] The transport system 26 has three strip-shaped, anti-slip mats 29 arranged on the loading floor 27.

[0038] Furthermore, the transport system 26 has a pallet 30 in the form of a Euro pallet, which is arranged on the anti-slip mats 29. The anti-slip mats 29 can be attached to an underside of the pallet 30 in the Fig. 1 shown positions.

[0039] In addition, the transport system 26 has a further anti-slip mat 31 arranged on the pallet 30, which extends over the entire upper side of the pallet 30.

[0040] In addition, the transport system 26 has three small load carrier layers 32 made of stackable and partially vertically interlocking small load carriers 33, which are made at least largely of plastic. Each small load carrier layer 32 is formed from four small load carriers 33. Three small load carriers 33 are stacked one above the other to form a small load carrier stack 34. The small load carriers 33 also form two small load carrier rows 35 running in the transverse direction of the vehicle and two small load carrier rows 36 running in the longitudinal direction of the vehicle. Each small load carrier 33 is designed as a folding container.

[0041] The additional anti-slip mat 31 is arranged between the pallet 30 and the lowest small load carrier layer 32. Thus, the lowest small load carrier layer 32 is arranged indirectly on the anti-slip mats 29 via the additional anti-slip mat 31 and the pallet 30.

[0042] Furthermore, the transport system 26 has four identically designed lids 20 placed on small load carriers 33 of the uppermost small load carrier layer 32 for covering the upper sides of the small load carriers 33 of the uppermost small load carrier layer 32. A separate lid 20 is provided for each small load carrier 33 of the uppermost small load carrier layer 32. The lids 20 are designed and arranged such that the respective lid 20 engages positively in the respective small load carrier 33 of the uppermost small load carrier layer 32 and edges of lids 20 arranged adjacent to one another each engage with one another via at least one positive connection acting in an arrangement plane of the lids 20. The lids 20 are according to the Fig. 4A and Fig. 4B shown embodiment better shown, which is why with regard to the description of the cover 20, refer to the description below for the Fig. 4A and Fig. 4B is referred to.

[0043] Furthermore, the transport system 26 has a separate tensioning belt 38 for each row of small load carriers 35 extending in the transverse direction of the vehicle. The respective tensioning belt 38 is placed over two covers 20 arranged adjacent to one another in the transverse direction of the vehicle and serves to securely tension the assembly comprising the anti-slip mats 29, the pallet 30, the additional anti-slip mat 31, the small load carriers 33, and the covers 20 on the loading floor 27. For this purpose, the ends of the respective tensioning belt 38 are secured to lashing eyes 39 of the commercial vehicle 28 near the floor.

[0044] Fig. 1A shows a schematic plan view of a top side 11 of an embodiment of a cover 1 of a transport system according to the invention (not shown). The transport system can also be designed according to the Fig. 1 shown embodiment.

[0045] The cover 1 is essentially rectangular, but not square. The cover 1 is provided with connecting recesses 2 and connecting projections 3 around its edges, alternating at least indirectly, by means of which the covers 1 can be connected to one another in a form-fitting manner at the edges, as shown in Fig. 1. Opposite sides 4 and 5, or 6 and 7, of the cover 1 are designed to complement each other. Each connecting recess 2 is dovetail-shaped, and each connecting projection 3 is designed to complement the dovetail-shaped configuration.

[0046] In particular, the cover 1 is provided with connecting geometries 8 around its edges, which are identically designed, directly adjacent to one another, and are each formed by a first edge section 9 of the cover 1, a connecting recess 2, a connecting projection 3, and a second edge section 10 of the cover 1 in this order. The connecting recess 2 of the respective connecting geometry 8 directly adjoins the connecting projection 3 of this connecting geometry 8.

[0047] The lid 1 can be at least partially formed from chipboard, in particular flat-pressed board. The chipboard can be provided on one or both sides, i.e., on its large sides, with a laminate (not shown).

[0048] Fig. 1B shows a schematic plan view of a bottom side 12 of the Fig. 1A shown cover 1. It is shown that the Fig. 1B, the underside 12 of the lid 1 facing the small load carrier not shown is smaller than the Fig. 1A is the top side of the lid 1. For this purpose, a circumferential step 13 is formed between the top side and the bottom side 12.

[0049] Fig. Figure 2A shows a schematic plan view of a top side 14 of a further embodiment of a cover 15 of a transport system according to the invention (not shown). The transport system can also be designed according to the Fig. 1, with the exception that the small load carriers have a square top corresponding to the lid 15. The lid 15 differs only in this respect from the Fig. 1A and Fig. 1B, the cover 15 is square. To avoid repetition, reference is made to the above description of the Fig. 1A and Fig. 1B.

[0050] Fig. 2B shows a schematic plan view of a bottom side 15 of the Fig. 2A shown cover 15. To avoid repetition, therefore, the above description is Fig. 1B.

[0051] Fig. 3A shows a schematic plan view of a top side 17 of a further embodiment of a cover 18 of a transport system according to the invention (not shown). The transport system can also be designed according to the Fig. 1, with the exception that the small load carriers have a rectangular upper side corresponding to the lid 18. The lid 18 differs only in this respect from the Fig. 2A and Fig. 2B that the cover 18 is rectangular and not square, but half the size of the one shown in the Fig. 2A and Fig. 2B. To avoid repetition, reference is made to the above description of the Fig. 1A and Fig. 1B.

[0052] Fig. 3B shows a schematic plan view of a bottom side 19 of the Fig. 3A shown cover 18. To avoid repetition, reference is made to the above description. Fig. 1B.

[0053] Fig. 4A shows a schematic plan view of a top side 11 of an embodiment of a cover 20 of the Fig. 1. The cover 20 differs from the one shown in the Fig. 1A and Fig. 1B shown embodiment that at the in Fig. 4A, six securing recesses 21 in the form of through holes are formed on the upper side 11 of the lid 20 facing away from the small load carrier (not shown) for securing a small load carrier (not shown) placed on the lid 20 against slipping relative to the lid 20. In addition, the lid 20 differs from the Fig. 1A and Fig. 1B, that an opening 22 is formed centrally on the lid 20, through which a handle section 23 of the lid 20 extends, which is monolithically connected to the rest of the lid 20. To avoid repetition, reference is made to the above description of the Fig. 1A and Fig. 1B.

[0054] Fig. 4B shows a schematic plan view of a bottom side of the Fig. 4A shown cover 20. To avoid repetition, reference is made to the above description. Fig. 1B.

[0055] Fig. 5A shows a schematic plan view of a top side 14 of a further embodiment of a cover 24 of a transport system according to the invention (not shown). The transport system can also be designed according to the Fig. 1, with the exception that the small load carriers have a square top corresponding to the lid 24. The lid 24 differs only in this respect from the Fig. 4A and Fig. 4B, the cover 24 is square. To avoid repetition, reference is made to the above description of the Fig. 4A and Fig. 4B.

[0056] Fig. 5B shows a schematic plan view of a bottom side 16 of the Fig. 5A shown cover 24. To avoid repetition, reference is made to the above description. Fig. 1B.

[0057] Fig. Figure 6A shows a schematic plan view of a top side 17 of a further embodiment of a cover 25 of a transport system according to the invention (not shown). The transport system can also be designed according to the Fig. 1, with the exception that the small load carriers have a rectangular upper side corresponding to the lid 25. The lid 25 differs only in this respect from the Fig. 5A and Fig. 5B that the cover 25 is rectangular and not square, but half the size of the one shown in the Fig. 5A and Fig. 5B. To avoid repetition, reference is made to the above description of the Fig. 1A and Fig. 1B.

[0058] Fig. 6B shows a schematic plan view of a bottom side 19 of the Fig. 6A shown cover 25. To avoid repetition, therefore, the above description is Fig. 1B. List of reference symbols 1 lid 2 connecting recess 3 connecting projection 4 Page of 1, 15, 18, 20, 24, 25 5 Page of 1, 15, 18, 20, 24, 25 6 Page of 1, 15, 18, 20, 24, 25 7 Page of 1, 15, 18, 20, 24, 25 8 Connection geometry at 1, 15, 18, 20, 24, 25 9 first edge section 10 second edge section 11 Top of 1, 20 12 bottom of 1, 20 13 Gradation 14 Top of 15, 24 15 lids 16 bottom of 15, 24 17 Top of 18, 25 18 lids 19 bottom of 18, 25 20 lids 21 securing recess 22 Breakthrough 23 Handle section 24 lids 25 lids 26 Transport system 27 Loading floor 28 commercial vehicles 29 anti-slip mat 30 pallets 31 more anti-slip mats 32 small load carrier layers 33 small load carriers 34 small load carrier stacks 35 small load carrier series 36 small load carrier row 38 tensioning strap 39 Lashing eye

Claims

[1] Transport system (26) for transporting loads on a loading floor (27) of a commercial vehicle (28), comprising at least one anti-slip mat (29) which can be arranged on the loading floor (27), at least one small load carrier layer (32) which can be arranged directly or indirectly on the anti-slip mat (29) and which consists of small load carriers (33) which are designed to be stackable and partially vertically interlocking, in particular Euro boxes, and a plurality of lids (1, 15, 18, 20, 24, 25) which can be placed on small load carriers (33) of an uppermost small load carrier layer (32) for covering upper sides of the small load carriers (33) of the uppermost small load carrier layer (32), wherein a separate lid (1, 15, 18, 20, 24, 25) is provided for each small load carrier (33) of the uppermost small load carrier layer (32). and the covers (1, 15, 18, 20, 24, 25) are designed and arranged in such a way that the respective cover (1, 15, 18, 20, 24,25) engages in a form-fitting manner in the respective small load carrier (33) and edges of lids (1, 15, 18, 20, 24, 25) arranged adjacent to one another each engage with one another via at least one form-fitting arrangement acting in an arrangement plane of the lids (1, 15, 18, 20, 24, 25). [2] Transport system (26) according to claim 1, characterized by at least one pallet (30) via which a lowermost small load carrier layer (32) can be arranged indirectly on the anti-slip mat (29), wherein at least one further anti-slip mat (31) is arranged between the pallet (30) and the lowermost small load carrier layer (32). [3] Transport system (26) according to one of the preceding claims, characterized byat least one tensioning belt (38) which can be placed over at least two covers (1, 15, 18, 20, 24, 25) arranged adjacent to one another for tightening the assembly comprising the anti-slip mat (29), the small load carriers (33) and the covers (1, 15, 18, 20, 24, 25) on the loading floor (27). [4] Transport system (26) according to claim 3, characterized by that the small load carriers (33) can be arranged in such a way that they form at least single-layered small load carrier rows (35, 36), wherein at least one separate tensioning belt (38) is provided for each small load carrier row (35, 36). [5] Transport system (26) according to one of the preceding claims, characterized by that at least one small load carrier (33) is designed as a folding container. [6] Transport system (26) according to one of the preceding claims, characterized bythat the covers (1, 15, 18, 20, 24, 25) are substantially rectangular, wherein each cover (1, 15, 18, 20, 24, 25) is provided on the edge side circumferentially in at least indirect alternation with connecting recesses (2) and connecting projections (3), by means of which the covers (1, 15, 18, 20, 24, 25) can be connected to one another in a form-fitting manner at the edges, wherein opposite sides (4, 5, 6, 7) of the respective cover (1, 15, 18, 20, 24, 25) are designed complementarily to one another, wherein each cover (1, 15, 18, 20, 24, 25) is provided on the edge side circumferentially with connecting geometries (8) which are of the same design and are directly adjacent to one another adjoining, wherein each connecting geometry (8) is formed by a first edge portion (9) of the cover (1, 15, 18, 20, 24, 25), a connecting recess (2), a connecting projection (3) and a second edge portion (10) of the cover (1, 15, 18, 20, 24, 25) in this order,wherein the connecting recess (2) of the respective connecting geometry (8) directly adjoins the connecting projection (3) of this connecting geometry (8). [7] Transport system (26) according to claim 6, characterized by that the respective cover (1, 15, 18, 20, 24, 25) is dimensioned larger in the area of ​​the connecting projections (3) and smaller in the area of ​​the connecting recesses (2) than an upper side of the respective small load carrier (33). [8] Transport system (26) according to claim 6 or 7, characterized by that at least one connecting recess (2) is dovetail-shaped and at least one connecting projection (3) is dovetail-shaped complementarily thereto. [9] Transport system (26) according to one of the preceding claims, characterized by that the covers (1, 15, 18, 20, 24, 25) are of the same design. [10] Transport system (26) according to one of the preceding claims, characterized bythat on an upper side (11, 14, 17) of at least one cover (20, 24, 25) facing away from the respective small load carrier (33), at least one securing recess (21) is formed for securing a small load carrier (33) placed on the cover (20, 24, 25) against slipping relative to the cover (20, 24, 25). [11] Transport system (26) according to one of the preceding claims, characterized by that at least one opening (22) is formed centrally on at least one lid (20), through which a handle section (23) of the lid (20) runs centrally and is monolithically connected to the rest of the lid (20). [12] Transport system (26) according to one of the preceding claims, characterized by that an underside (12, 16, 19) of at least one lid (1, 15, 18, 20, 24, 25) facing the respective small load carrier (33) is smaller than the upper side (11, 14, 17) of the lid (1, 15, 18, 20, 24, 25). [13] Transport system (26) according to claim 12, characterized by that a circumferential step (13) is formed on the edge between the upper side (11, 14, 17) and the lower side (12, 16, 19). [14] Transport system (26) according to one of the preceding claims, characterized by that at least one cover (1, 15, 18, 20, 24, 25) is at least partially formed as a chipboard. [15] Transport system (26) according to claim 14, characterized by that the chipboard is covered with a laminate on one or both sides.

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