DE20003922U1 - Load compartment structure for transport vehicles - Google Patents

Description

GEITZ A ⁸ GElTZ Patent Attorneys

Kriegsstr. 234 · 76135 Karlsruhe

Attorney file: 20004209

Applicant: KEPPLER GmbH Fahrzeugbau

Industriestrasse 5

D-777 67 Appenweier

LOADING COMPARTMENT CONSTRUCTION FOR TRANSPORT VEHICLES

The invention relates to a loading space structure for transport vehicles with a foldable tarpaulin for covering a loading space area, which can be folded in a horizontal sliding direction like a sliding door, wherein at least in one lateral tarpaulin end region a rigid sliding element is firmly connected to the tarpaulin, and wherein the tarpaulin is guided in the region of its upper end by means of at least one upper guide element and the sliding element is guided horizontally displaceably on an upper rail of the loading space structure by means of at least two upper guide elements spaced apart in the sliding direction.

Transport vehicles are usually loaded and unloaded using loading vehicles such as forklifts. Loading and unloading is usually carried out from the side fronts arranged alongside the transport vehicle. During loading and unloading, the loading area must be accessible to the loading vehicles essentially without obstruction. For this purpose and to protect the transported goods against contamination, the transport vehicles are equipped with a loading area or the loading and unloading areas that delimit it.

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Because it is very difficult to clear the loading areas by folding away the tarpaulins, the tarpaulins are arranged on the loading area structure in a manner similar to a sliding door, so that they can be folded together by pushing them together, preferably in a horizontal direction.

To enable easy collapsibility, the foldable tarpaulins have a rigid sliding element in at least one lateral end area of the tarpaulin, which is firmly connected to the tarpaulin, with the tarpaulin and the sliding element being guided in the area of their upper ends by means of at least one upper guide element on an upper rail of the loading space structure so that they can be moved horizontally. It has been shown that for easy and jam-free guidance of the manually operated sliding element, at least two upper guide elements spaced apart by a sufficient distance in the horizontal direction of displacement must be provided.

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Although such loading space structures containing tarpaulins that can be folded like sliding doors already meet user requirements in many ways, it has been shown that they can still be improved with regard to their guidance and covering conditions. Accordingly, it is an object of the invention to improve loading space structures of this type in many ways, in particular to optimize the guidance and covering conditions.

This object is achieved according to the invention by the features of claim 1, in particular by the fact that the tarpaulin is secured in the region of its lower end by means of at least one

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of a lower guide element on a lower rail and, if necessary, the sliding element is guided in the area of its lower end by means of at least one lower guide element on a lower rail. This enables favorable guidance conditions when folding back the tarpaulin and, on the other hand, when transporting goods, the loading space opening covered by the unfolded, stretched tarpaulin can be securely covered. Furthermore, these measures can have a favorable effect on the fold formation of the tarpaulin, so that it can be pushed back easily and, when pushed together, a tarpaulin package with a comparatively small width and thus favorable loading and unloading conditions are possible. If the sliding element is also guided in the area of its lower end in a lower rail by means of at least one lower guide element, the guidance and sealing conditions can be further improved.

According to an advantageous development of the invention, the tarpaulin is provided with at least one vertical reinforcement element, preferably designed perpendicular to the direction of displacement, held and guided at the end. This measure contributes to improved securing of the load during transport and a vertically defined fold of the tarpaulin can be achieved, so that on the one hand it can be pushed back easily and without problems and on the other hand a favorable package thickness of the folded tarpaulin arrangement can be achieved.

This effect can be further improved if the reinforcement element is positioned between an upper guide element and a lower guide element of the tarpaulin

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and is preferably firmly connected to an upper guide element and a lower guide element of the tarpaulin.

A further improved guidance and a reduction in the manual effort required to fold up the tarpaulin arrangement can be achieved by designing at least the upper guide elements of the sliding element and preferably at least the at least one upper guide element of the tarpaulin with rollers guided on and/or in the upper rails.

It is also expedient if the lower guide element of the tarpaulin is designed with a hook part that opens towards the tarpaulin and is guided in a hook-shaped rail part of the lower rail that is designed to match this and is open in the opposite direction, and if necessary the lower guide element of the sliding element is designed with a hook part that opens towards the sliding element and is guided in a hook-shaped rail part of the lower rail that is designed to match this and is open in the opposite direction, with the respective hook part and the respective rail part preferably being designed identically. This makes it possible to achieve secure guidance of the tarpaulin or sliding element on the one hand and a possibility of vertical movement of the tarpaulin structure relative to the lower rail on the other hand in order to be able to absorb vertical vibrations of the roof part of the loading space structure and the upper rail connected to it that occur during transport and to be able to create a corresponding length tolerance compensation.

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With loading space structures of this type, it is not easy to avoid the tarpaulin blocking a relatively large part of the loading area when pushed together, so that in order to fully utilize the loading area, the tarpaulin structure containing the tarpaulin and the sliding element(s) must be pushed back and forth. The width of the pushed-together tarpaulin package is the result of adding the width of the two sliding elements attached to the tarpaulin ^at the ends of the tarpaulin and the width determined by the number of guide elements of the tarpaulin. In this way, with loading space structures of this type, at least two pallet spaces, i.e. a loading area of twice 800 mm, i.e. a total of 1,600 mm, can be blocked.

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To improve this situation, according to a particularly advantageous development of the invention, at least one of the guide elements of the tarpaulin can be designed to be displaceable together with the tarpaulin from a position in the sliding opening direction into a sliding clearance arranged in the sliding closing direction next to the sliding element. This makes it possible to minimize the thickness of the tarpaulin package when the tarpaulin is pushed together and consequently the loading area can be used to the maximum. Due to the sliding clearance created in this way for the guide elements of the tarpaulin in the sliding closing direction, the tarpaulin package can be significantly reduced in width and thus minimized, whereby the width of the loading area can be reduced compared to the position described above.

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situation can be increased by at least 700 mm in loading space superstructures designed in accordance with the state of the art.

According to an advantageous embodiment or according to another definition of the above inventive concept, at least the foremost guide element of the tarpaulin in the sliding closing direction and at least the foremost guide element of the sliding element in the sliding closing direction, preferably on the same side of the tarpaulin, are guided on separate rails which are arranged at a distance from one another in such a way that at least this one guide element of the tarpaulin can be pushed along the sliding element together with the tarpaulin in the sliding closing direction. These measures also make it possible to significantly reduce the width of the tarpaulin package when folded up, so that the loading space opening corresponding to the loading space area can be advantageously used.

The separate rails are conveniently arranged horizontally. This allows for a simple and cost-effective construction, while maintaining the size of the loading area for loading and unloading the transported goods.

According to an advantageous development, the sliding element is designed with a guide support extending in the sliding direction, to which at least the foremost guide element in the sliding opening direction is fastened, and wherein in the area of the sliding closing end of the guide support a sliding bar is fastened which rises above the guide support normal to the sliding direction and to which the tarpaulin is firmly connected

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and which preferably serves as an actuating element for manually opening or closing the tarpaulin structure.

In order to securely close the tarpaulin cover to prevent it from opening accidentally, it is expedient if the sliding element can be coupled to a stanchion of the loading space structure which laterally delimits the loading space area via a locking mechanism in order to releasably fix the sliding element and the tarpaulin firmly connected to it in a closed position relative to the stanchion.

In loading space superstructures of this type, closures have become known for laterally closing the loading space openings or areas, whereby the sliding element can be coupled to a stanchion of the loading space superstructure that laterally delimits the loading space area via a closure mechanism in order to releasably fix the sliding element and the tarpaulin firmly connected to it in a closed position relative to the stanchion. These previously known tarpaulin closures have the disadvantage that they are located in the danger zone defined by the vertical boundaries of the loading space area during loading and can therefore be exposed to frequent damage. Up to now, a closure was provided in the lower third of the sliding elements or the tarpaulin, the closure parts of which could be brought into engagement with the stanchion projecting laterally beyond the free vertical ends of the sliding elements arranged in the sliding opening direction. This arrangement not only carries the risk of frequent damage, but also leads to uneven or incomplete sealing of the loading space area of the loading space opening by the tarpaulin structure. These disadvantages can be avoided by

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that the locking mechanism has a locking part arranged above the loading area and one below the loading area, outside a danger zone predetermined by the vertical opening dimensions of the loading area, firmly connected to the sliding element and protruding from it in the sliding closing direction, each with a locking part engagement element arranged in the region of its free end, which can be brought into engagement with a counter-engagement element firmly connected to the stanchion but movable relative to the stanchion. Because a locking part of the locking mechanism is provided at least at the upper end and at least at the lower end of each sliding element above and below the loading area, both an even sealing of the loading area above and below and a significant reduction in the risk of damage, particularly when loading with forklift trucks, can be achieved.

The locking part engagement element is expediently designed as a recess and the counter-engagement element as a locking finger that can be brought into engagement in the recess, wherein the locking finger is advantageously arranged to be rotatable about a rotation axis that is firmly connected to the stanchion, such that after the locking finger has been rotated about the rotation axis into a closed position, the tarpaulin can be held in a taut position that covers the loading area and preferably seals it. :

In such a loading space structure, the locking finger is expediently connected to a shaft that is rotatable about the axis of rotation, vertical and arranged perpendicular to the direction of displacement, wherein preferably the shaft above the

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The locking finger arranged on the loading area and the locking finger arranged below the loading area are attached to a common shaft. This simple, cost-effective design of the locking mechanism allows the loading area to be advantageously sealed by the tarpaulin arrangement and enables easy manual operation.

According to an advantageous further development, the locking finger and the rotation axis are arranged within the stanchion, which is preferably designed as a square tube and has a lateral opening for receiving the free end of the locking part containing the recess. As a result, the part of the locking mechanism assigned to the stanchion is arranged in a protected manner in this and the locking parts firmly connected to the sliding element are also arranged in a protected manner against mechanical damage in the locking position.

Conveniently, the locking mechanism can also be actuated by means of non-manual drive means, for example by means of an electric, pneumatic and/or hydraulic drive means, so that the locking mechanism can also be designed as a switchable central locking system.
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The tarpaulin is expediently arranged to be vertically displaceable relative to the rail that guides the lower guide element of the tarpaulin and the sliding element is arranged to be vertically displaceable relative to the rail on which the required lower guide element is guided. This advantageously allows for movement options for the tarpaulin and the sliding element.

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ments in the vertical direction, which may be caused by vibrations in the roof area of the load compartment structure, whereby the amplitude of the vertical vibrations may be up to 30 mm or more. .

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It is also advantageous if the lower guide element of the tarpaulin is arranged so that it can be moved vertically relative to the tarpaulin and preferably guided with little play in the vertical direction relative to the rail that guides it, and if the lower guide element of the sliding element is arranged so that it can be moved vertically relative to the sliding element and preferably guided with little play in the vertical direction relative to the rail that guides it. This allows the vertical length tolerance compensation to be advantageously placed in the area between the lower guide element(s) and the tarpaulin and the sliding element, so that on the one hand a more stable guide is possible and on the other hand an unintentional release of the lower guide from the lower rail can be prevented.

According to a particularly advantageous embodiment of the invention, it is provided that the lower guide element of the tarpaulin is designed to cooperate telescopically with a vertical guide, preferably perpendicular to the direction of displacement, which is firmly connected to the tarpaulin and that, if necessary, the lower guide element of the sliding element is designed to cooperate telescopically with a vertical guide, preferably perpendicular to the direction of displacement, which is firmly connected to the sliding element

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If, furthermore, the guide for the lower guide element of the tarpaulin forms a reinforcing element for the tarpaulin, which is preferably designed in accordance with the characterizing part of claims 3 or 4, the above advantages of such tarpaulins provided with reinforcing elements can be combined with the advantages of a smooth and secure tarpaulin or sliding element guide that enables vertical tolerance compensation.

It is also advantageous if the guide for the lower guide element of the tarpaulin is designed as a tube, which preferably has a rectangular inner cross-section and preferably a rectangular outer cross-section, in which a guide part which is firmly connected to the lower guide element of the tarpaulin is inserted with little play, preferably loosely guided, and if the guide, if provided, for the lower guide element of the sliding element, if provided, is designed as a tube, which preferably has a rectangular inner cross-section and preferably a rectangular outer cross-section, in which a guide part which is firmly connected to the lower guide element of the sliding element is inserted with little play, preferably loosely guided, wherein the respective tube and the respective guide part are preferably designed identically. This comparatively simple and cost-effective structure enables stable, safe and precise guidance in the vertical direction.

According to an advantageous development of the guide elements of the tarpaulin formed with hook parts or the sliding elements formed with hook parts as well as the lower rails each designed with hook-shaped rail parts,

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it is provided that the lower guide element of the tarpaulin has an upper stop surface of the respective hook part, which cooperates with an upper stop surface of the hook-shaped rail part, and wherein the lower . Guide element of the tarpaulin each has a respective lower stop surface of the respective hook part, which is arranged from its respective upper stop surface at a guide element stop surface distance and opposite this, which interacts with a lower stop surface of the hook-shaped rail part, which has a rail part stop surface distance from its upper stop surface that corresponds to the thickness of the rail part and is slightly smaller than the guide element stop surface distance, and that optionally the lower guide element of the sliding element each has an upper stop surface of the respective hook part, which interacts with an upper stop surface of the hook-shaped rail part, and wherein the lower guide element of the sliding element each has a respective lower stop surface of the respective hook part, which is arranged from its respective upper stop surface at a guide element stop surface distance and opposite this, which interacts with a lower stop surface of the hook-shaped rail part, which has a distance from its upper stop surface that corresponds to the thickness of the rail part. Rail part-stop surface distance' which is slightly smaller than the guide element-stop surface distance. This enables stable and safe guidance in the vertical direction and smooth guidance in the horizontal direction of displacement.

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According to a further advantageous inventive concept, it is provided that below the lower guide element of the tarpaulin there is a shock protection profile that projects horizontally over this lower guide element and at least perpendicular to the direction of displacement, and that below the possibly provided lower guide element of the sliding element there is a shock protection profile that projects horizontally over this lower guide element and at least perpendicular to the direction of displacement. This makes it possible to prevent damage to the lower guides when loading the loading space.

Avoid using forklifts. _: .

The impact protection profile, preferably designed as an impact protection rib, is expediently connected to the lower rail in one piece and preferably extends over the entire width of the loading area. This enables a stable and cost-effective construction with a lower weight.

It is also advantageous if the impact protection profile and the rail are designed as light metal extruded profiles.

■ These measures enable cost-effective production and high stability of such impact protection profiles through favorable material structure design options, while at the same time keeping the weight low.

The above measures, both individually and in combination with one another, contribute to a diverse improvement in the loading space structure for transport vehicles, in particular to an optimization of the guidance and covering conditions.

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Further features, aspects and advantages of the invention can be found in the following description, which is based on the figures.

A preferred embodiment of the invention is described below with reference to the figures.

Show it: . .

Fig. 1 the loading space structure in a three-dimensional

exploded view;

Fig. 2 is a cross-section through the assembled loading space structure along a section line corresponding to section line II-II in Fig. 1;

Fig. 3 is a cross-section along the section lines III-III in Fig. 2;

Fig. 4 is a plan view of the tarpaulin structure pushed together to form a tarpaulin package, to illustrate the space-saving pushing together conditions;

Fig. 5 is a partial front view with partial section of the loading space structure;

Fig. 6 is a partial bottom view with partial section of the loading space structure in the area of one of the side vertical stanchions;.
30

Fig. 7 shows an enlarged partial cross-section of the loading space structure in the area of the lower rail for

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Clarification of leadership, intervention and security conditions.

The loading space structure 20 for transport vehicles shown in Fig. 1 delimits the loading space 21 suitable for the transport of transport goods of a transport vehicle not shown in detail in the figures. The loading space structure 20 typically comprises the essentially horizontal loading area 22, which is laterally delimited by the front wall 32, the rear wall 23 and the tarpaulin structures 25 usually provided at least on the two long sides 24, and comprises the roof 26. The loading space 21 is loaded and unloaded via the essentially freely accessible loading space areas 27 formed on both long sides 24. Each loading space area 27 is usually rectangular in cross-section and is delimited on its four sides by the vertical front stanchion 28, the vertical rear stanchion 29, the roof support 30 connecting the stanchions 28 and 29 on the top side and the frame 31 connecting the two stanchions 28 and 29 on the bottom side. The loading space area 27 has the height 33 and the width 34.

For the purpose of essentially free access to the loading area 22 or the loading area 27 of the loading area opening that is vertically associated with it, the loading area structure 20 is provided with the tarpaulin structure 25. This serves both to protect the goods to be transported, in particular against dirt, as well as to protect against rainwater or other environmental influences and also serves to secure the goods being transported. For the purpose of simple and easy operation and to create favorable accessibility conditions, the tarpaulin structure 25 is sliding

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designed like a door and is essentially made up of the sliding elements 35 and 36 and the foldable tarpaulin 37 which is firmly connected to them and arranged between them. The rigid sliding elements 35 and 36 are arranged at the lateral vertical ends 38 and 39 of the tarpaulin 37, respectively, which enable safe and simple manual operation of the tarpaulin structure 25. The tarpaulin structure 25 can be manually moved in the horizontal direction 40 along the long side 24. For this purpose, both the tarpaulin 37 and the sliding elements 35 and 36 have the upper guide elements 41, 42, 43, 44; 45, 46; 47 48 at their upper ends and the lower guide elements 51, 52, 53, 54; 55, 57 at their lower ends. These are arranged in the upper rails 60 and 61 on the one hand and in the lower rail 63 on the other hand for the purpose of secure guidance and easy horizontal movement of the tarpaulin structure 25. The upper guide elements 41, 42, 43, 44 of the tarpaulin 37 and the upper guide elements 45, 46 or 47, 48 of the sliding elements 35 or 36 comprise the rollers 64, 65, 66, 67 assigned to the tarpaulin 37 and the rollers 68, 69 or 70, 71 assigned to the respective sliding elements 35, 36, which are mounted and guided in the associated upper rails 60, 61. In contrast, the lower guide elements 51, 52, 53, 54 of the tarpaulin are designed as tarpaulin-side hook parts 72 and the lower guide elements 55 and 57 of the sliding elements 35 and 36 are designed as sliding element-side hook parts 73, which engage in a hook-shaped rail part 75 designed to match.

Between the upper guide elements 41, 42, 43, 44 of the tarpaulin and the lower guide elements 51, 52, 53, 54 of the

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The tarpaulin 37 is provided with the reinforcing elements 77 formed with the tubes 76, each arranged vertically or perpendicularly to the direction of displacement 40, which are connected to the tarpaulin 37. For this purpose, the tarpaulin has suitable pocket-like hollow seams 78 running in the vertical direction, into which the tubes 76 of the reinforcing elements 77 are inserted and which are preferably glued to the tarpaulin 37 at the lateral overlapping areas 96, 97. As reinforcement and as protection for the respective hollow seam 78, this is surrounded by the U-profile 98 in the inward-facing part of the respective reinforcing element 77, which is attached together with the hollow seam 78 to the respective tube 76 of the reinforcing element 77 via the rivets indicated by dash-dot lines in Fig. 3. Furthermore, an upper and a lower guide element are arranged at the upper and lower ends of the reinforcing elements 77. The reinforcing elements 77 designed as tubes 76 enable a favorable load securing when the tarpaulin structure 25 is closed.

Each sliding element 35, 36 is designed with an upper horizontal guide beam 80, 81, which extends in the direction of displacement 40. The guide beams 80, 81 have a width 82 and a height 83 and are designed with the profile 84, which is U-shaped in cross section and encompasses the horizontal legs 85, 90 (Fig. 2). The horizontal legs 85, 90 are designed in the area of the free space 91 with a profile part that is open to the outside, i.e. towards the tarpaulin 37, and have a width of 93 in this area, while the profile 84 in the area of the respective sliding bar 86, 87 is designed as a square tube with a width of 99 in order to enable the respective sliding bar to be attached.

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86, 87 on the outer vertical leg of the profile 84 of the respective guide support 80, 81. As can be seen in particular from Fig. 1, the vertical sliding strips 86 and 87 are each arranged at the ends of the respective guide support 80 and 81 in the sliding/closing direction, the sliding strips 86, 87 each rising outwards above the respective guide supports 80 and 81 perpendicular to the loading area 27 and having a width 88 and a height 89. .'·".

The tarpaulin structure 25 or the sliding elements 35, 36 forming it and the tarpaulin 37 can be moved manually by moving the sliding bars 86 or 87 in the direction of movement 40. The tarpaulin 37 is attached to the sliding bars 86, 87 or in an area located between the sliding bars 86, 87 and the respective guide support 80, 81, so that the tarpaulin 37 can be moved by manually moving the sliding bars 86 or 87. A sliding opening direction and a sliding closing direction are defined for each of the sliding elements 35 and 36. The sliding opening direction is defined as a displacement of the respective sliding element 35, 36 in the direction of the sliding element 36, 35 arranged opposite, and the sliding closing direction is defined as a displacement of the respective sliding element 35, 36 in the opposite direction. With respect to the sliding element 35 shown on the left in Fig. 1, a displacement to the right therefore means a displacement in the sliding opening direction 90 and a displacement of the sliding element 35 to the left means a displacement in the sliding closing direction 85.

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As can be seen in particular from Fig. 4, the two upper guide elements 45 and 46 are arranged at the upper end of the guide support 80 of the sliding element 35 at a distance 49 from one another in the direction of displacement 40, whereby these are each designed with the rollers 68 and 69 designed as double rollers. The distance 49 between the rollers 68 and 69 corresponds to a certain minimum distance which is selected in such a way that easy manual displacement of the sliding element 35 or the tarpaulin structure .25 is possible. In the embodiment shown, the two rollers 68 and 69 are arranged in alignment in the direction of displacement 40. It is understood, however, that the rollers 68 and 69 can also be arranged horizontally offset from one another perpendicular to the sliding direction 40, in such a way that the foremost roller 68 of the sliding element 35 in the sliding opening direction 90 is fastened in the region of the upper end of the guide support 80 which is front in the sliding opening direction 90 and that the roller 69 is fastened in the region of the upper end of the sliding bar 86. As can be seen from Fig.

1 and 2, the rollers 68 and 69 of the sliding element 35 are guided in the upper rail 60 and the rollers 64, 65, 66, 67 of the tarpaulin 37 are guided in the upper rail 61 which is spaced horizontally from the rail 60 and normal to the direction of displacement 40. In contrast, the sliding element 35 has at its lower end only the one lower guide element 55 formed with the hook part 73, which is fastened to the lower end of the sliding bar 86 and which is arranged in alignment with the lower hook parts 72 of the tarpaulin 37, the hook parts 72 and 73 being guided on the lower rail 63 having the hook-shaped rail part 75.

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As shown in Fig. 2, the rails 60 and 61 are attached to the top of the rail support 95. This overlaps the roof support 30 on the top and is attached at an angle between the roof support 26 and the roof support 30. The upper tarpaulin-like sealing lip 118 is attached to the downwardly angled free end of the rail support 95, which overlaps the tarpaulin 37 on the outside up to approximately the level of the lower edge of the guide support 80 or the roof support 30. As can also be seen from Fig. 2, the roller 69 of the guide support 80 of the sliding element 35 is attached via the vertical flat element 72 to the inward-facing side of the profile 84 of the guide support 80. This applies in the same way to the roller 69 of the sliding element 35 and, accordingly, to the rollers 70, 71 of the sliding element 36.

Similarly, the roller 64 and the rollers 65; 66, 67 of the tarpaulin 37 are each connected to the respective reinforcing elements 77 via a vertical flat element.

As can be seen from Fig. 1 and 4, due to the design and arrangement of the guide supports 80, 81 and the sliding strips 86, 87 to which the tarpaulin 37 is in turn attached, a displacement space 91 is formed next to and in the embodiment in front of the guide supports 80, 81 of the respective sliding element 35, 36, into which the reinforcing elements 77 of the tarpaulin 37 provided with the upper guide elements 41, 42; 43, 44 and the lower guide elements 51, 52; 53, 54 can be displaced in the displacement closing direction when the tarpaulin 37 is pushed together or folded together. This displacement space 91 is defined by a width 92 and a height as well as a depth 94. The width 92 of the displacement space 91 in the embodiment corresponds

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the distance between the front vertical front edge of the guide support 80 pointing in the sliding opening direction and the front vertical front edge of the sliding bar 86 pointing in the sliding opening direction or the part of the profile 84 of the sliding element 35 extending between the sliding bar 86 and the front edges of the horizontal legs 141, 142 of the guide support 80 pointing outwards towards the tarpaulin 37. The height of the sliding clearance 91 corresponds to the distance between the upper end of the upper guide elements 45, 46 of the sliding element 35 provided with the rollers 68, 69 and the lower end of the sliding element 35. The depth 94 of the sliding clearance 91 corresponds to the distance between the inside of the tensioned tarpaulin 37 and the outward-facing front surfaces of the horizontal legs 141, 142 of the respective guide support 80 or 81 opposite it. As can be seen from As can be seen from Fig. 4, the depth 94 of the sliding space 91 and, accordingly, the distance between the two upper rails 60 and 61 are selected such that when the tarpaulin 37 is pushed together, for example when the sliding element 35 moves in the sliding closing direction 85, the reinforcing elements 77 provided with the upper guide elements 41, 42 and the lower guide elements 51, 52 can be accommodated in the sliding space 91 while simultaneously folding the tarpaulin 37 with folds forming outwards. As can also be seen from Fig. 4, in the exemplary embodiment up to six of the reinforcing elements 77 provided with guide elements can be accommodated in the sliding space 91. In this way, the pushed-together tarpaulin package 50 of the tarpaulin structure 25 can be reduced to a minimum or the free space available for loading and unloading the transport goods can be reduced.

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space of the loading area 27. It is understood that the above considerations apply in the same way to the displacement conditions resulting on the side of the sliding element 36 shown on the right in Fig. 1 or in Fig. 4 at the top, so that in a tarpaulin structure 25 formed with the sliding elements 35 and 36, a corresponding double effect with regard to minimizing the tarpaulin package thickness in the folded state of the tarpaulin 37 results by creating the two displacement spaces 91.

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As can be seen in particular from Fig. 5 and 6, the loading space structure 20 is provided with a locking mechanism 100 arranged on both vertical sides of the loading space surface 27. This is designed with the upper locking part 1.01 and the lower locking part 102, which are firmly connected to the sliding element 35 or 36 and which protrude horizontally from the respective sliding element 35 or 36 in the sliding closing direction. The upper locking part 101 and the lower locking part 102 are arranged above and below the loading space surface 27, respectively, outside the danger zone when loading the loading surface 22. The upper and lower locking parts 101, 102 have, in the region of their free ends 103, 104, approximately rectangular, horizontally elongated recesses 108, 109 which form the locking part engagement elements 106, 107. The recesses 108, 109 can be brought into engagement with the counter-engagement elements 111, 112 provided in the area of the lateral, vertical stanchions 28, 29 delimiting the loading area 27. As can be seen in particular from Fig. 6, the counter-engagement elements 111, 112 are designed with the nose-shaped locking fingers 113, 114. The locking fingers 113, 114 are arranged around a fixedly connected to the stanchion 28

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connected rotation axis 115 of the vertically arranged shaft 116, such that after a rotation of the locking fingers 113, 114 about the rotation axis 115 into the locking position shown in Fig. 5 and .6, the tarpaulin 37 is held in a tensioned position covering the loading area 27, even if it is at its opposite end.

de is held by a locking mechanism which fixes the opposite sliding element 36 accordingly. The shaft 116 is mounted in the bearings 120 which are firmly connected to the stanchion 28. .

To improve the sealing, the sealing lip 118 extending over the entire width 34 of the loading area 27 is provided in the area of the roof support 30 and is attached to the rail support 95. Furthermore, the sealing lip 119 is provided in the area of the lower frame 31 and is designed as a lower part of the tarpaulin 37 that projects vertically beyond the impact protection rib 221 (Fig. 2). Finally, the vertical rubber seals 58, 59 are provided for lateral sealing on the front ends of the sliding strips 86, 87 pointing in the sliding closing direction.

As shown in Fig. 6, the stanchion 28 is designed with the square profile 121, with the bearings 120, the shaft 116 and the locking fingers 113, 114 being accommodated in a protected manner in the interior 122 of the square profile 121. The stanchion 28 is provided with the openings .123 and 124 at a distance corresponding to the vertical distance of the locking fingers 113, 114, which serve to accommodate the free ends 103, 104 of the locking parts 101, 102 and which are formed by the openings.

20004209/02. 03. 2000/tr ;'";"j ^: ~~;"<

opening 123, 124 into the interior 122 of the stanchion 28.

As can be seen from Fig. 5, the shaft 116 projects downwards beyond the stanchion 28 designed with the square profile 121 and is there in engagement with the actuating means 126, which can be actuated via the drive means 127, which here is designed with the manually operated hand lever 130. It is understood that the drive means can also be actuated electrically, pneumatically and/or hydraulically. In this way, a switchable actuation and rotation of the locking fingers 113, 114 about the rotation axis 115 can be achieved for actuation into the locking position 117 or into an opening position releasing the locking parts 101, 102, in which the tarpaulin structure 25 or the tarpaulin 37 can be opened.

As can be seen from Fig. 6, the drive means 127 is designed with the hand lever 130 which can rotate about the vertical axis of rotation 128 which is firmly connected to the frame 31. The actuating rod 131 which acts as the actuating means 126 is pivotally connected to the hand lever 130 so that it can rotate about the vertical axis of rotation 132. The axis of rotation 132 is arranged at a distance from the axis of rotation 128 such that when the hand lever 130 is closed, a more secure locking position 117 is achieved by elastic restoring forces. The actuating lever 135 which can rotate about the vertical axis of rotation 133 is arranged at the end of the actuating rod 131 opposite the axis of rotation 132 and is firmly connected to the shaft 116 at its end pointing away from the axis of rotation 133. Consequently, a movement of the hand lever 130 in the opening direction 136 leads to a movement of the actuating rod.

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131, which in turn leads to an opposite movement of the locking fingers 113, 114 via a rotation of the shaft 116, so that in the opening position these are no longer in engagement with the locking parts 102, 103 and consequently the respective sliding element 35, 36 can be displaced in the respective sliding opening direction.

The lower guide conditions of the tarpaulin 37 can be seen in more detail in Fig. 7, with the guide conditions of the sliding elements 35, 36 being designed accordingly. Each reinforcing element 77 is designed as a vertical guide 200 formed perpendicular to the direction of displacement 40 with the tube 76, which is designed here as a square tube. A guide part 201 is loosely inserted into the tube 76 from below, which is guided in the tube 76 with a small amount of play and is firmly connected to the respective lower guide element of the tarpaulin 37 or the sliding element 35, 36. In this way, the guide part 201 is arranged telescopically in the guide 200 so that it can be moved to compensate for length tolerances. In the exemplary embodiment, the tube 76 has a rectangular outer cross-section and a rectangular inner cross-section (Fig. 3) and accordingly the guide part 201 is designed with a suitable outer cross-section that allows it to be moved vertically. In the area of the lower end of the guide part 201, the lower guide element 203 is arranged, which in the view shown in Fig. 7 is designed with the hook part 205 that is open in the direction of the tarpaulin 37, i.e. upwards. The hook part 205 has the upper horizontal stop surface 206 and the lower stop surface 207 arranged opposite it in the area of its free end, which is in the guide element stop surface distance

20004209/02.03.2000/tr j'V/ ;**;

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208 are arranged relative to one another. The hook-shaped rail part 211 of the lower rail 63 engages in the hook part 205. For this purpose, the hook-shaped rail part 211 has the hook part 212 which is open in the opposite direction to the hook part 205, i.e. here downwards. The hook part 212 has the upper stop surface 213 and the lower stop surface 214, which have a rail part-stop surface distance 215 from each other that corresponds to the thickness of the hook-shaped rail part 211 in this area and is slightly smaller than the guide element-stop surface distance 208 of the hook part 205 of the lower guide element 203. Consequently, the lower guide part 201 is guided on the lower rail 63 with little vertical play in order to enable stable guidance that prevents unintentional detachment of the lower guide part 201 from the lower rail 63. In this case, the lower guide part 201 is prevented from becoming detached from the lower rail 63 in a direction normal to the direction of displacement 40 and normal to the loading area 27 by the vertical nose 216 of the hook part 205 of the lower guide element 203 and the vertical nose 217 of the hook part 212 of the hook-shaped rail part 211. At the same time, however, easy displacement in the direction of displacement 40 is ensured.

Below the lower guide element 203 or the lower guide elements 51, 52, 53, 54 of the tarpaulin 37 and the respective lower guide element 55, 57 of the sliding elements 35, 36, a shock protection profile 220 is provided which projects horizontally and at least perpendicularly to the sliding direction 40. This is formed with the shock protection rib 221 and extends over the entire width

20004209/02. 03. 2000/tr «". *"5 .·*

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34 of the loading area 27. The impact protection profile 220 is connected in one piece to the lower rail 63 and is designed as a light metal extruded profile, preferably made of aluminum.

'ä ÖEltZ'

Kriegsstr. 234 · 76135 Karlsruhe

Attorney file: 20004209

Applicant: KEPPLER GmbH Fahrzeugbau

Industriestrasse D-77767 Appenweier

LIST OF REFERENCE SYMBOLS

20 Loading space structure 21 Loading space 50

22 Loading area

23 Rear wall

24 Long side

25 Tarpaulin construction

26 Roof 55

27 Loading area

28 stakes

29 stakes

30 roof racks

31 Frame 60

32 Front wall

33 Height of 27
'34 Width of 27

35 Sliding element 36 Sliding element 65

37 tarpaulins

38 side end of 37

39 side end of 37

40 Shift direction

41 upper guide element 70

of 37
42 upper guide element

of 37

4 3 upper guide element of 37 75

44 upper guide element of 37

45 upper guide element of 35

46 upper guide element 80

of 35

47 upper guide element of 36

48 upper guide element

of 36 4 9 distance

50 tarpaulin package

51 lower guide element of 37

52 lower guide element of 37

53 lower guide element of 37

54 lower guide element of 37

55 lower guide element of 35

57 lower guide element of 36

58 Rubber seal

59 Rubber seal

60 upper rail

61 upper rail

62 Flat element

63 lower rail

64 rolls (to 37)

65 role (to 37) 66 role (to 37) 67 role (to 37) 68 role (to 35) 69 role (to 35) 70 role (to 36) 71 role (to 36) 72 Flat element 73 Hook part 75 hook-shaped rails 76 part Pipe

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77 Reinforcing element 50

78 hemstitch

79 Hook part (for 35, 36)

80 upper guide beam of 35

81 upper guide carrier 55 of 3 6

82 width of 80, 81

83 Height of 80, 81 84 Profile of 80, 81

85 sliding closing 60 direction

86 Sliding bar

87 Sliding bar

88 Width of 86, 87 8 9 Height of 8 6, 87 65

90 Sliding opening direction

91 Clearance for movement 92 Width of 91

93 width of 141, 142 70

94 Depth of 91

95 rail supports

96 Overlap area 97 Overlap area

98 U-profile 75

99 width of 85, 90

100 locking mechanism 101 upper locking part

102 Lower closure part 80

103 Free end of 101

104 Free end of 102

106 Closure part

Intervention element

(above) 85

107 Locking part engagement element (bottom)

108 Recess of 101 109 Recess of 102 90

111 Counter-engagement element (top)

112 Counter-engagement element (bottom)

113 Locking finger 95

(above)

114 locking finger

(below)

115 Rotation axis

116 Wave

117 Locking position

118 Sealing lip (top)

119 Sealing lip (bottom)

120 warehouses

121 square profile

122 Interior of

123 Opening (top)

124 Opening (bottom)

126 Actuators

127 Propulsion systems

128 Rotation axis

130 Hand lever

131 Operating rod

132 Rotation axis

133 Rotation axis

135 Operating lever

136 Opening direction

141 Horizontal legs

142 horizontal legs

200 lead to 51, 52, 53, 54

201 Guide part

203 lower guide element

205 Hook part

206 upper stop surface of 205

207 lower stop surface of 205

208 Guide element stop surface distance

211 hook-shaped rail part

212 Hook part

213 upper stop surface of 211

214 lower stop surface of 211

215 Rail part stop surface distance

216 Nose of

217 Nose of

220 Impact protection profile

221 Shock protection rib

Claims (24)

1. Loading space structure for transport vehicles with a foldable tarpaulin for covering a loading space area, which can be folded in a horizontal sliding direction like a sliding door, wherein at least in one lateral tarpaulin end region a rigid sliding element is firmly connected to the tarpaulin, and wherein the tarpaulin is guided in the region of its upper end by means of at least one upper guide element and the sliding element is guided by means of at least two upper guide elements spaced apart in the sliding direction on an upper rail of the loading space structure so that it can be moved horizontally, characterized in that the tarpaulin ( 37 ) is guided in the region of its lower end by means of at least one lower guide element ( 51 , 52 , 53 , 54 ) on a lower rail ( 63 ) and, if necessary, the sliding element ( 35 , 36 ) is guided in the region of its lower end by means of at least one lower guide element ( 55 , 57 ) on a lower rail ( 63 ). 2. Loading space structure according to claim 1, characterized in that the tarpaulin ( 37 ) is provided with at least one vertical reinforcing element ( 77 ) which is preferably formed perpendicular to the direction of displacement ( 40 ), held and guided at the end. 3. Loading space structure according to claim 2, characterized in that the reinforcing element ( 77 ) extends between an upper guide element ( 42 , 43 , 44 , 45 ) and a lower guide element ( 51 , 52 , 53 , 54 ) of the tarpaulin and is preferably firmly connected to an upper guide element ( 42 , 43 , 44 , 45 ) and a lower guide element ( 51 , 52 , 53 , 54 ) of the tarpaulin ( 37 ). 4. Loading space structure according to one of claims 1 to 3, characterized in that the upper guide elements ( 41 , 42 , 43 , 44 ) of the sliding element ( 35 , 36 ) and preferably the at least one upper guide element ( 42 , 43 , 44 , 45 ) of the tarpaulin ( 37 ) are designed with rollers ( 64 , 65 , 66 , 67 ; 68 , 69 ; 70 , 71 ) guided on and/or in upper rails ( 60 , 61 ). 5. Loading space structure according to one of claims 1 to 4, characterized in that the lower guide element ( 51 , 52 , 53 , 54 ) of the tarpaulin ( 37 ) is designed with a hook part ( 72 , 205 ) which is open in the direction of the tarpaulin ( 37 ) and which is guided in a hook-shaped rail part ( 211 ) of the lower rail ( 63 ) which is designed to match this and is open in the opposite direction, and that if necessary the lower guide element ( 55 , 57 ) of the sliding element ( 35 , 36 ) is designed with a hook part ( 73 ) which is open in the direction of the sliding element ( 35 , 36 ) and which is guided in a hook-shaped rail part ( 211 ) of the lower rail ( 63 ) which is designed to match this and is open in the opposite direction, wherein preferably the respective hook part ( 73 ) and the respective rail part ( 211 ) is designed identically. 6. Loading space structure according to one of claims 1 to 5, characterized in that at least one of the guide elements of the tarpaulin ( 37 ) is designed to be displaceable together with the tarpaulin ( 37 ) from a position in the sliding opening direction into a sliding free space ( 91 ) arranged in the sliding closing direction next to the sliding element ( 35 , 36 ). 7. Loading space structure according to one of claims 1 to 6, characterized in that at least the foremost guide element of the tarpaulin ( 37 ) in the sliding closing direction and at least the foremost guide element of the sliding element ( 35 , 36 ) in the sliding closing direction are guided on separate rails ( 60 , 61 ) which are arranged at a distance from one another in such a way that at least this one guide element of the tarpaulin ( 37 ) can be pushed along the sliding element ( 35 , 36 ) in the sliding closing direction together with the tarpaulin ( 37 ). 8. Loading space structure according to claim 7, characterized in that the separate rails ( 60 , 61 ) are arranged horizontally spaced apart. 9. Loading space structure according to claim 8, characterized in that the sliding element ( 35 , 36 ) is designed with a guide support ( 80 , 81 ) extending in the sliding direction, to which at least the respective foremost guide element in the sliding opening direction is fastened, and wherein in the region of the sliding closing side end of the guide support ( 80 , 81 ) a sliding strip ( 86 , 87 ) is fastened which rises above the guide support ( 80 , 81 ) normal to the sliding direction ( 40 ), to which the tarpaulin ( 37 ) is firmly connected. 10. Loading space structure according to one of claims 1 to 9, characterized in that the sliding element ( 35 , 36 ) can be coupled to a stanchion ( 28 , 29 ) of the loading space structure ( 20) laterally delimiting the loading space surface (27 ) via a locking mechanism ( 100 ) in order to releasably fix the sliding element ( 35 , 36 ) and the tarpaulin ( 37 ) firmly connected to it relative to the stanchion ( 28 , 29 ) in a closed position, wherein the locking mechanism ( 100 ) has a locking part ( 101 , 102 ) firmly connected to the sliding element ( 35 , 36 ) above the loading space surface ( 27 ) and one below the loading space surface ( 27 ) and protruding from it in the sliding closing direction, each with a locking element (103) in the region of its free end ( 104) . , 104 ) arranged closure part engagement element ( 106 , 107 ), which can be brought into engagement with a counter-engagement element ( 111 , 112 ) which is firmly connected to the stanchion ( 28 , 29 ) but movable relative to the stanchion ( 28 , 29 ). 11. Loading space structure according to claim 10, characterized in that the closure part engagement element ( 106 , 107 ) is designed as a recess ( 108 , 109 ) and the counter-engagement element ( 111 , 112 ) is designed as a closure finger ( 113 , 114 ) which can be brought into engagement in the recess ( 108 , 109 ). 12. Loading space structure according to claim 11, characterized in that the locking finger ( 113 , 114 ) is arranged to be rotatable about a rotation axis ( 115 ) firmly connected to the stanchion ( 28 , 29 ), such that after a rotation of the locking finger ( 113 , 114 ) about the rotation axis ( 115 ) into a closed position, the tarpaulin ( 37 ) can be held in a tensioned position covering, preferably sealing, the loading space surface ( 27 ). 13. Loading space structure according to claim 12, characterized in that the locking finger ( 113 , 114 ) is connected to a shaft ( 116 ) which is rotatable about the axis of rotation ( 115 ), vertical and arranged perpendicular to the direction of displacement ( 40 ), wherein preferably the locking finger ( 113 ) arranged above the loading space surface ( 27 ) and the locking finger ( 114 ) arranged below the loading space surface ( 27 ) are fastened to a common shaft ( 116 ). 14. Loading space structure according to one of claims 12 or 13, characterized in that the locking finger ( 113 , 114 ) and the axis of rotation ( 115 ) are arranged within the stanchion ( 28 , 29 ), which is preferably designed as a square profile ( 121 ) and has a lateral opening ( 123 , 124 ) for receiving the free end ( 103 , 104 ) of the locking part ( 101 , 102 ) containing the recess ( 108 , 109 ). 15. Loading space structure according to one of claims 10 to 14, characterized in that the locking mechanism ( 100 ) can be actuated by means of an electrical, pneumatic and/or hydraulic drive means. 16. Loading space structure according to one of claims 1 to 15, characterized in that the tarpaulin ( 37 ) is arranged to be vertically displaceable relative to the rail ( 63 ) guiding the lower guide element ( 51 , 52 , 53 , 54 ; 203 ) of the tarpaulin ( 37 ), and in that the sliding element ( 35 , 36 ) is arranged to be vertically displaceable relative to the rail ( 63 ) on which the lower guide element ( 55 , 57 ) provided as required is guided. 17. Loading space structure according to one of claims 1 to 16, characterized in that the lower guide element ( 51 , 52 , 53 , 54 ; 203 ) of the tarpaulin ( 37 ) is arranged to be vertically displaceable relative to the tarpaulin ( 37 ) and preferably guided with little play in the vertical direction relative to the rail ( 63 ) guiding it, and that optionally the lower guide element ( 55 , 57 ) of the sliding element ( 35 , 36 ) is arranged to be vertically displaceable relative to the sliding element ( 35 , 36 ) and preferably guided with little play in the vertical direction relative to the rail ( 63 ) guiding it. 18. Loading space structure according to claim 17, characterized in that the lower guide element ( 51 , 52 , 53 , 54 ; 203 ) of the tarpaulin ( 37 ) is designed to cooperate telescopically with a vertical guide ( 200 ) which is preferably designed perpendicular to the direction of displacement ( 40 ) and which is firmly connected to the tarpaulin ( 37 ), and that, if appropriate, the lower guide element ( 55 , 57 ) of the sliding element ( 35 , 36 ) is designed to cooperate telescopically with a vertical guide which is preferably designed perpendicular to the direction of displacement ( 40 ) and which is firmly connected to the sliding element ( 35 , 36 ). 19. Loading space structure according to claim 18, characterized in that the guide ( 200 ) for the lower guide element ( 51 , 52 , 53 , 54 ; 203 ) of the tarpaulin forms a reinforcing element ( 77 ) for the tarpaulin ( 37 ). 20. Loading space structure according to one of claims 18 or 19, characterized in that the guide ( 200 ) for the lower guide element ( 51 , 52 , 53 , 54 , 204 ) of the tarpaulin ( 37 ) is designed as a tube ( 76 ) which preferably has a rectangular inner cross-section and preferably a rectangular outer cross-section, in which a guide part ( 201 ) which is firmly connected to the lower guide element ( 51 , 52 , 53 , 54 ; 203 ) of the tarpaulin ( 37 ) is inserted preferably loosely guided with little play and that the optionally provided guide for the optionally provided lower guide element ( 55 , 57 ) of the sliding element ( 35 , 36 ) is designed as a tube which preferably has a rectangular inner cross-section and preferably a rectangular outer cross-section, in which a Guide element ( 55 , 57 ) of the sliding element ( 35 , 36 ) each firmly connected guide part is inserted with little play, preferably loosely guided, wherein preferably the respective tube and the respective guide part are designed identically. 21. Loading space structure according to one of claims 5 to 20, characterized in that the lower guide element ( 51 , 52 , 53 , 54 ; 203 ) of the tarpaulin ( 37 ) has an upper stop surface ( 206 ) of the respective hook part ( 72 , 205 ) which cooperates with an upper stop surface ( 214 ) of the hook-shaped rail part ( 211 ), and wherein the lower guide element ( 51 , 52 , 53 , 54 ; 203 ) of the tarpaulin ( 37 ) has a respective lower stop surface (207) of the respective hook part ( 72 , 205) arranged at a guide element stop surface distance (208 ) from its respective upper stop surface (206 ) and opposite thereto, which lower stop surface ( 207 ) cooperates with a lower stop surface ( 214 ) of the hook-shaped rail part ( 211 ), which has a rail part stop surface distance ( 215 ) from its upper stop surface ( 213 ) corresponding to the thickness of the rail part ( 211 ), which is slightly smaller than the guide element stop surface distance ( 208 ) and that, if applicable, the lower guide element ( 55 , 57 ) of the sliding element ( 35 , 36 ) has an upper stop surface of the respective hook part ( 73 ), which cooperates with an upper stop surface of the hook-shaped rail part ( 211 ), and wherein the lower guide element ( 55 , 57 ) of the sliding element ( 35 , 36 ) has a respective lower stop surface of the respective hook part ( 73 ) arranged at a guide element stop surface distance from its respective upper stop surface and opposite thereto, which is connected to a lower Stop surface of the hook-shaped rail part ( 211 ) which has a rail part stop surface distance from its upper stop surface corresponding to the thickness of the rail part ( 211 ) and which is slightly smaller than the guide element stop surface distance. 22. Loading space structure according to one of claims 1 to 21, characterized in that below the lower guide element ( 51 , 52 , 53 , 54 ; 203 ) of the tarpaulin ( 37 ) there is provided an impact protection profile ( 220 ) which projects horizontally and at least normal to the direction of displacement ( 40 ) over this lower guide element ( 51 , 52 , 53 , 54 ; 203 ), and that below the optionally provided lower guide element ( 55 , 57 ) of the sliding element ( 35 , 36 ) there is provided an impact protection profile ( 220 ) which projects horizontally and at least normal to the direction of displacement ( 40 ) over this lower guide element ( 55 , 57 ). 23. Loading space structure according to claim 22, characterized in that the impact protection profile ( 220 ), preferably designed as an impact protection rib ( 221 ), is integrally connected to the lower rail and preferably extends over the entire width ( 34 ) of the loading space surface ( 27 ). 24. Loading space structure according to one of claims 22 or 23, characterized in that the impact protection profile ( 220 ) and the rail ( 63 ) are designed as light metal extruded profiles.