ARRANGEMENT WITH A TRANSPORT TROLLEY AND A PROTECTIVE DEVICE

Description

[0001] The present invention relates to an arrangement with a transport carriage and a protective device.

[0002] A generic transport trolley has a shelf-like structure and usually comprises a frame into which several shelves can be inserted if necessary. Different objects can be stored or transported on each shelf. For example, transport trolleys for the transport and / or storage of plants, or in short plant transport trolleys, are known, with which plants, for example flowers and the like, are transported and / or stored as transport goods. It is desirable to at least partially cover the sides of the transport trolley if necessary. This covering or covering serves in particular to protect the transport goods or the transport trolley, for example from external influences, and / or as a transport security device in order to prevent or at least reduce damage to the transport goods during transport. This can also provide visual protection.

[0003] DE 10 2014 001 331 A1 and EP 2 905 197 A1 disclose a protective device for enclosing a transport trolley. The protective device comprises a flat cover with hooks on the top for attachment to the transport trolley. Furthermore, a connecting element is attached to each of the transverse ends of the cover. The cover completely encloses the transport trolley in a circumferential direction of the transport trolley. The connecting elements interact like a hook-and-loop fastener, so that the cover completely covers and encloses the sides of the transport trolley.

[0004] WO 2013 / 131550 A1 discloses a cover for mail crates. To accommodate items of different sizes in the mail crates and to allow items to protrude from the cover, several slits are provided in the cover and several straps are attached to the cover. The slits can be closed with zippers. US 2,455,237 A shows a tarpaulin for covering cargo in an aircraft. Loops and hooks are attached to the tarpaulin for securing it to the floor of the aircraft.

[0005] GB 2 000 101 A discloses a cover for a pallet. Opposing supports are arranged on the pallet. A stiffening element fixes the supports relative to each other and stiffens them.

[0006] EP 1 167 234 A2 discloses a closure for closing an open side of a container, such that the open side is connected to the container all around.

[0007] In EP 0 376 857 A1, a cover is placed over a transport trolley and secured with seals at the bottom of the transport trolley.

[0008] In US Pat. No. 5,193,955, a net of straps is placed over the cargo on a truck. The net straps are attached to the bottom edge of the truck's carrying platform.

[0009] These types of transport trolleys have a wide range of applications. In particular, the respective transport trolley can be equipped with a different number of shelves, which can be spaced at different heights, as required in order to transport different goods, such as plants of different heights. This means, in particular, that depending on the use of the transport trolley, different geometric conditions, in particular different external dimensions, of the transport trolley can exist. For example, the use of different numbers of shelves can lead to a change in the external geometry of the transport trolley, particularly in the circumferential direction. This is usually reinforced by known protective devices. As a result, the protective device can ensure insufficient coverage of the transport trolley and thus inadequately protect the goods being transported.

[0010] The present invention is therefore concerned with the object of providing improved or at least different embodiments for an arrangement comprising a transport carriage and a protective device, which are characterized in particular by an improved and / or simplified and / or more reliable covering of the transport carriage.

[0011] This object is achieved according to the invention by the subject matter of independent claim 1. Advantageous embodiments are the subject matter of the dependent claims.

[0012] The present invention is based on the general idea of ​​attaching means to a cover or covering of the protective device in an arrangement comprising a transport trolley and a protective device. These means, when the protective device is mounted on a transport trolley, result in the covering being tensioned both in a vertical direction and in a transverse direction running perpendicular to the vertical direction. In the assembled state, the transverse direction of the protective device or covering runs in a circumferential direction of the transport trolley or corresponds to the circumferential direction, with outer sides, or sides for short, of the transport trolley following one another in the circumferential direction.Tensioning the protective device in both directions results, on the one hand, in the cover adapting to possible dimensional changes of the transport trolley, in particular in the circumferential direction, so that a more reliable and / or simpler covering and thus protection of the transport trolley and of the transported goods inside the transport trolley is possible. On the other hand, the risk of the cover shifting relative to the transport trolley is prevented or at least reduced, so that the securing of the transported goods inside the transport trolley is improved. The tensioning of the cover in the vertical direction is achieved by attaching the corresponding means to the transport trolley, so that in particular a displacement of the cover relative to the transport trolley in the vertical direction, in particular a slipping of the cover along the transport trolley, is prevented or at least reduced.

[0013] According to the inventive concept, the protective device is provided for laterally covering or covering the transport trolley, i.e., in particular, for covering the outside of the transport trolley in a circumferential direction of the transport trolley. In principle, the transport trolley can be used for transporting, and in particular for storing, any type of transport goods. This includes, in particular, plants and the like, for example flowers, so that the transport trolley can be designed, in particular, as a plant transport trolley. The covering is made of a material, in particular consists of the material that is also referred to below as the covering material. The covering extends vertically and transversely, in particular rectangularly or rectangularly, wherein the covering is expediently designed to be flat.The cover is thus capable of laterally covering at least one side of the transport trolley running in the circumferential direction when attached to the transport trolley, in particular when fully mounted on the transport trolley. The protective device further comprises at least one holding means for attaching the cover to an upper structure of the transport trolley, in particular to an upper side of the transport trolley, wherein the holding means is designed such that the protective device, in particular the cover, is held on the transport trolley when the holding means is attached to the transport trolley. The protective device further comprises at least one tensioning means which is spaced apart in height from the at least one holding means and which is likewise attached to the transport trolley, specifically to a lower structure of the transport trolley spaced apart from the upper structure, in particular to an underside of the transport trolley.The at least one holding means and / or the at least one tensioning means are / are preferably detachably attachable to the transport carriage. If the at least one holding means and the at least one tensioning means are attached to the transport carriage, they tension the covering in the vertical direction. In this case, it is particularly conceivable for the at least one tensioning means to first be attached to the lower structure of the transport carriage and then for the holding means to be attached to the upper structure of the transport carriage. Of course, a reverse procedure is also conceivable. The protective device further comprises at least one connecting means and at least one counter-connecting means spaced transversely from the connecting means, which tension the covering in the transverse direction when installed.In the assembled state, in which the at least one holding means, the at least one tensioning means, the at least one connecting means and the at least one counter-connecting means are each attached, the covering is tensioned both in the vertical direction and in the transverse direction via its own components of the protective device.

[0014] To tension the covering in the transverse direction, it is conceivable that the connecting means and the counter-connecting means are attached to the transport carriage. This means that the connecting means and the counter-connecting means are designed for attachment to the transport carriage. Preferably, the connecting means and / or the counter-connecting means are / are detachably attachable to the transport carriage.

[0015] The connecting means and the counter-connecting means can interact and thus form a, preferably detachable, connection. This means that for tensioning the covering in the transverse direction, no connection or attachment of the connecting means and the counter-connecting means to the transport carriage is necessary. In this case, the connecting means and the counter-connecting means can interact, in particular, in a form-fitting manner. Preferably, the holding means and / or the tensioning means are attached to the transport carriage in a form-fitting manner. This allows for a simple attachment of the corresponding means to the transport carriage as well as a simplified design of the means.

[0016] The covering or covering material is preferably selected such that it can be easily deformed. In particular, the covering can be designed such that it deforms without the application of external force and only due to gravity when not held in place. The covering is thus deformable, particularly in the manner of a cloth.

[0017] The covering is preferably made of a plastic, in particular a polymer, for example, polyester. This means that the covering material can be a plastic, in particular a polymer, for example, polyester. This leads to improved stability and / or a reduced weight of the covering. The covering material can therefore be, in particular, a mesh tarpaulin, a PVC tarpaulin, a vinyl mesh net, a PVC fabric, a mesh fabric, and the like.

[0018] In principle, the holding means and / or the tensioning means and / or the connecting means and / or the counter-connecting means can be formed or formed integrally on the cover. Preferred embodiments are those in which said means are separate from the cover and attached to it. This allows for simplified and more flexible attachment of the cover to the transport trolley.

[0019] Conceivable designs include the holding device and / or the tensioning device having a loop attached to the cover. The loop can be attached to the transport trolley.

[0020] Another option is to consider variants in which the holding device and / or the tensioning device has a hook for attaching to the transport trolley. Said hook can be attached to the loop. This makes it possible, in particular, to replace the hook if necessary, for example, in the event of damage and / or for improved adaptation to different transport trolleys.

[0021] The hook is preferably designed as a snap hook. Flat hooks are also conceivable. This allows for simplified attachment of the hook to the transport trolley. The hook, in particular the snap hook, is advantageously designed, particularly attached to the covering material, in such a way that it is interchangeable, so that it can be exchanged and / or replaced as needed.

[0022] Variants are also conceivable in which the holding means and / or the tensioning means have a clamp closure with which they are attached, in particular fastened, to the cover.

[0023] If the connecting element and the counter-connecting element form the connection, the cover covers at least two sides of the transport trolley, in particular enveloping them. If the connecting element and the counter-connecting element are attached to the transport trolley, it is also possible to cover individual sides of the transport trolley.

[0024] Advantageous embodiments provide that the protective device has at least two connecting means and / or counter-connecting means spaced apart from one another in the vertical direction. This enables improved adaptation of the protective device to possible geometric changes in the transport trolley, which may be caused, for example, by a variation in the floors used in the transport trolley. Furthermore, it is possible to tension the covering more effectively over a height extending in the vertical direction, in particular evenly in the transverse direction. If one connecting means and one counter-connecting means act together to form a connection, a plurality of vertically spaced, in particular detachable, connections are provided, which tension the covering in the assembled state in the associated region in the transverse direction.

[0025] The respective connecting means and / or the respective counter-connecting means can, in principle, be designed as desired. Connecting means and / or counter-connecting means are preferably designed such that a detachable attachment to the transport trolley or a detachable connection can be established. If the connecting means and the counter-connecting means are intended for attachment to the transport trolley, they can each be designed as a hook or have such a hook. These include snap hooks, flat hooks, and the like. It is conceivable to provide the connecting means or the counter-connecting means with a loop attached to the covering. The loop can be used for attachment to the transport trolley or to form the connection. It is also conceivable to connect the hook to the covering via the loop.

[0026] If the connecting means and the counter-connecting means are designed to form the connection, one of the means can have a hook, while the other means has a ring or a ring segment, for example a D-ring, into which the hook engages to form the connection. It is also conceivable for one of the means to have an eyelet, particularly in the covering material, or to be designed as an eyelet. Variants are also conceivable in which at least one of the means has a loop. Alternatively or additionally, the respective means can have a clamp closure for force-fitting the means.

[0027] The protective device advantageously comprises a plurality of holding means spaced apart from one another in the transverse direction and / or a plurality of tensioning means spaced apart from one another in the transverse direction. This simplifies the attachment of the cover to the transport trolley. Furthermore, this allows for improved tensioning of the cover in the vertical direction, in particular, more uniform tensioning of the cover in the vertical direction.

[0028] Preferred embodiments are those in which the protective device has a corresponding clamping device for the respective holding device, which is vertically aligned with the corresponding holding device. This simplifies the attachment of the protective device to the transport trolley, since holding devices and clamping devices spaced apart in the transverse direction can be easily attached to the transport trolley one after the other. Furthermore, this allows the covering to be tensioned over a large area and / or evenly in the vertical direction.

[0029] The respective holding means is preferably attached to the covering in an end region, in particular in an edge region, hereinafter also referred to as the upper end region or upper edge region. It is also preferred if the respective tensioning means is attached to the covering in a lower end region, in particular a lower edge region, opposite the upper end region in the vertical direction. These configurations each allow efficient use of the area of ​​the covering in the vertical direction and / or tensioning of the covering over a greater height of the covering. The respective holding means and / or the respective tensioning means can project beyond the associated end region or edge region or be arranged offset towards the edge opposite in the vertical direction.

[0030] The same applies to the respective connecting means and / or the respective counter-connecting means, which are advantageously attached in the region of a transverse end of the covering, hereinafter also referred to as the side edge. This means that the respective connecting means is attached to the covering in the region of one of the side edges and the respective counter-connecting means is attached to the other side edge.

[0031] Embodiments are conceivable in which at least one holding means and / or at least one clamping means are / is arranged in the region of one of the side edges.

[0032] Embodiments are conceivable in which at least one of the at least one tensioning means interacts with at least one of the connecting means and / or counter-connecting means to, together with the at least one holding means, tension the covering in the vertical direction. The tensioning means can interact successively with connecting means and / or counter-connecting means that follow one another in the vertical direction. Thus, the tensioning means can be used to tension the covering both vertically and transversely.

[0033] It is preferred if at least one of these connecting means and / or counter-connecting means is spaced transversely from at least one of the other connecting means and / or counter-connecting means. It is particularly preferred if at least one connecting means and / or counter-connecting means and at least one connecting means and / or counter-connecting means are arranged in the region of different side edges. This simplifies handling of the protective device. The protective device can thus be attached to the transport trolley in a particularly simplified manner, and the covering can be tensioned both vertically and transversely in a simplified and effective manner.

[0034] Embodiments are conceivable in which connecting means and / or counter-connecting means are provided in the region of both side edges of the covering, spaced apart from one another in the vertical direction. The tensioning means preferably interacts with at least one connecting means and / or counter-connecting means in the region of one of the side edges and with at least one connecting means and / or counter-connecting means in the region of the other side edge. This interaction thus leads, on the one hand, to tensioning the covering in the vertical direction and, on the other hand, to tensioning the covering in the transverse direction. Furthermore, the covering is thus better able to compensate for dimensional changes in the transport trolley.

[0035] The tensioning device interacts with the at least one connecting means and / or counter-connecting means preferably via a rope and / or rubber, which is attached to the tensioning device, which can in particular be in the form of a loop that can be guided around a support of the transport trolley or around a receptacle of the transport trolley for receiving such a support, even detachably, wherein the rubber in turn enables improved compensation of dimensional changes in the transport trolley. The tensioning device, in particular the loop, is advantageously arranged in the edge region, preferably in the lower end region, of the covering and thus also ensures tensioning of the associated edge region. It is conceivable that the rope and / or rubber are / are components of the tensioning device.Advantageously, the interaction takes the form of a cable guide and / or rubber guide, such that the cable and / or rubber is guided through the connecting means and / or counter-connecting means with which the tensioning means interacts. These connecting means and / or counter-connecting means are advantageously designed as a hook or carabiner and thus enable simplified attachment of the cable and / or rubber to the connecting means and / or counter-connecting means and simplified guidance of the cable and / or rubber through the connecting means and / or counter-connecting means. Overall, this considerably simplifies the handling of the protective device and the tensioning of the covering in the vertical and transverse directions. Advantageously, the cable and / or rubber runs at least once between the side edges.

[0036] According to the invention, the at least one holding means or the at least one clamping means is arranged such that they are each assigned to a corner region of the transport trolley. This means that the respective holding means or the respective clamping means is arranged in an associated corner region of the transport trolley in the assembled state. In the present case, the corner region is understood not only to mean a corresponding corner of the transport trolley, but also the region adjacent to the corner in the circumferential direction. This leads to simplified attachment of the protective device to the transport trolley. In addition, supports, in particular corner posts, of the transport trolley are usually arranged in the corner regions, so that the attachment of the protective device and the tensioning of the covering are simplified.

[0037] Of course, variants are also conceivable in which at least one such holding means and / or clamping means is arranged outside the corner areas.

[0038] It is conceivable to provide the covering with a bulge in the area of ​​at least one clamping device and / or at least one holding device. The bulge is directed away from the transport carriage, in particular, and simplifies the attachment of the clamping device or holding device to the transport carriage, as well as the vertical tensioning of the covering.

[0039] The protective device can be designed such that the transverse edges of the covering or the side edges are spaced apart from one another when assembled. As a result, a gap running vertically is formed in the protective device when assembled. This gap allows, in particular, visual access to the interior of the transport trolley, so that the transported goods can be identified more easily. Embodiments are also conceivable in which the side edges overlap or at least partially touch one another when assembled. It is also conceivable to provide the protective device with several connecting means and / or counter-connecting means that are spaced apart from one another in the transverse direction and thus in the circumferential direction of the transport trolley and can be used to allow the side edges to be arranged either at a distance from one another or so that they overlap or touch one another.

[0040] The covering, especially the covering material, is preferably elastic in the vertical and / or transverse directions. This allows for improved tensioning of the covering. It is also possible to achieve tensioning of the covering through the covering material itself. Furthermore, such a covering material allows for better compensation of geometric changes in the transport vehicle.

[0041] Preferred embodiments provide for the covering, in particular the covering material, to have greater elasticity in the vertical direction than in the transverse direction. This allows for more efficient and / or improved compensation of dimensional changes in the transport trolley, which can be caused in particular by a different number of floors on the transport trolley and occur more frequently in the circumferential direction of the transport trolley, along which the transverse direction of the covering runs in the assembled state. Therefore, if such a floor is removed, this leads to an inward displacement of the supports and consequently to an at least local change in the outer circumference of the transport trolley, which can be easily and effectively compensated for using the elasticity of the covering material.

[0042] Particularly preferably, the covering material is formed as a textile or a textile. This allows the covering to be realized in a lightweight and reusable manner, meaning, in particular, that it has a longer service life. Furthermore, the covering is breathable or at least partially permeable to air.

[0043] Particularly preferred are embodiments in which the covering material is formed as a knitted fabric. This results in advantageous mechanical stability of the covering while maintaining elasticity. In particular, the covering can be designed in such a way that it has greater elasticity in the vertical direction than in the transverse direction. The knitted fabric can be designed in any desired manner. In particular, the knitted fabric is designed as a warp-knitted fabric, for example, in the form of a "hole fillet."

[0044] Preferred embodiments provide that the connecting means and / or the counter-connecting means or a connection possibly formed by the connecting means and the counter-connecting means is designed to be elastic in the transverse direction. This leads to improved compensation of geometric changes in the transport trolley. For an elastic design, it is conceivable to provide the connecting means and / or the counter-connecting means with an elastic component, for example a rubber band. Alternatively or additionally, it is conceivable to provide the connecting means and / or the counter-connecting means or a connection possibly formed by the connecting means and the counter-connecting means with a belt system, in particular a tensioning belt, or to design it as such. The belt system can also be used to change, in particular increase, the tensioning of the cover, even subsequently.

[0045] In advantageous embodiments, the covering, in particular the covering material, is provided with reinforcements for mechanical stabilization or to improve the mechanical stability of the covering. Said reinforcements can be designed, in particular, in the form of an additionally attached band and / or as material reinforcement.

[0046] It is particularly advantageous to provide the covering with at least one corresponding reinforcement in the connection area to the respective holding means or tensioning means and / or connecting means and / or counter-connecting means. It is particularly conceivable to provide the covering with at least one reinforcement all the way around the edges. Thus, the covering is designed in the manner of a tarpaulin or as a tarpaulin.

[0047] It is also preferred to provide the covering with at least one reinforcement extending vertically. These reinforcements are preferably arranged in the corner area of ​​the transport carriage and thus prevent damage to the covering, since increased loads occur in these areas. The reinforcements can be continuous vertically and spaced transversely. It is also conceivable to provide such reinforcements locally in the corner areas and in a limited vertical direction.

[0048] The respective reinforcement can be attached to the covering material in any way. In particular, it is conceivable to sew the reinforcement to the covering material.

[0049] Advantageously, the covering has a slit extending vertically over a partial area on at least one of the vertically end edges, i.e., on the upper edge and / or the lower edge. This makes it easier to adapt the covering to the geometric conditions and / or changes to the transport vehicle. The slit is advantageously reinforced at the edges. It is also conceivable to connect opposite limbs of the slit in the transverse direction with the aid of a connecting means, for example, a band, which can be elastic.

[0050] Alternatively or additionally, it is conceivable to install a variably adjustable strap system at the upper and / or lower end of the covering. This strap system, in different positions, changes the extension of the corresponding edge in the transverse or circumferential direction. The strap system is preferably attached to a corresponding reinforcement. The strap system also makes it possible, even retrospectively, to change the tension of the covering, in particular to increase it.

[0051] The protective device can have a pulling system which comprises a cable pull with a rope. The pulling system enables, in particular, the connection of the connecting means and / or the counter-connecting means if, when the protective device is attached to the transport trolley, the latter is located above the reach height of a normal user, in particular above 2.00 m. The pulling system is attached to the protective device in such a way that, in the assembled state, it braces the connecting means and the counter-connecting means against one another. For this purpose, the rope can be attached to the connecting means and / or the counter-connecting means. In addition, the pulling system can have a guide, for example a ring, through which the rope is guided.

[0052] As mentioned above, the protective device is intended to cover at least one side or outer side of the transport trolley. By appropriately adapting the protective device, in particular its dimensions, it is possible to use the protective device on transport trolleys of different sizes and / or to cover different sides of the same transport trolley. It is also conceivable to provide several such protective devices of different dimensions, with which the transport trolley can be selectively covered. In particular, this makes it possible to cover different sides of the transport trolley and / or at least one side of the transport trolley at different heights.In this respect, the present invention also relates to a modular system in which at least two protective devices are provided which differ in their dimensions, i.e. in their heights running in the vertical direction and / or their widths running in the transverse direction.

[0053] The transport trolley preferably has several supports arranged like corner posts, each of which can be part of a frame. The supports are spaced apart from one another in the circumferential direction and extend vertically. In Supports arranged in succession in the circumferential direction define the outer side(s) of the transport trolley. Accordingly, each support forms a corner of the transport trolley or is at least arranged in a corner area. Each support can be attached to a vertically lower base of the transport trolley, whereby the base can be configured as a chassis of the transport trolley or be part of the chassis. Transport means, such as rollers or wheels, can be attached to the side of the base facing away from the supports, enabling transport of the transport trolley.

[0054] The supports serve in particular to hold the shelves of the transport trolley, which are spaced apart from one another in the vertical direction and are used to carry and transport goods, in particular plants and the like, for example flowers. For this purpose, the respective support can be designed as a hollow body or a profile with receptacles spaced apart from one another in the vertical direction, wherein the respective receptacle can accommodate and thus hold one of the shelves, in particular at the corner. It is also conceivable to provide the transport trolley with grid elements adjacent in the circumferential direction, wherein the shelves are held by the grid elements. It is preferred if the shelves can be detachably inserted into the transport trolley. It is also advantageous if the respective shelf can be alternatively or additionally attached at different heights in the transport trolley. This makes it possible to variably equip the transport trolley with a different number of shelves.

[0055] Preferably, the at least one holding means is designed and / or arranged such that it cooperates with such a support for attaching the covering to the transport trolley. For example, the holding means can cooperate with such a receptacle, in particular be suspended therein. Thus, the receptacle forms the upper structure of the transport trolley for the associated holding means.

[0056] It is advantageous if the at least one clamping device interacts with a base-side end of the transport carriage. In particular, it is conceivable for at least one of the clamping devices to interact with a base-side end of one of the supports. This means that said base-side end of the support forms the lower structure of the support for the clamping device. Such a lower structure can be formed, in particular, by a rib protruding from the base on the supports.

[0057] It is conceivable to introduce a slot into the covering, in particular in the covering material, which extends vertically over a partial area. The respective slot can be arranged in such a way that it allows access to the trolley through the protective device, in particular a gripping of at least one of the supports. Alternatively, it is conceivable to use such a slot to fix or secure the trolley, for example in a vehicle. For this purpose, it is particularly conceivable that a fixing means having a hook can be passed through such a slot, which fixes and secures the trolley in a corresponding motor vehicle.

[0058] The covering material is preferably lightweight. In particular, the covering material, for example the textile, in particular the knitted fabric, is designed or manufactured with a density of 100 to 500 grams per square meter, particularly preferably between 105 and 115 grams per square meter. The covering material is preferably printable. For this purpose, the covering material can be made of plastic, in particular of a polymer, in particular of polyester. This allows the covering material to be customized. In particular, a sublimation or direct printing process can be used for printing.

[0059] It is conceivable to attach a machine-readable identification means to the protective device, allowing the respective protective device to be registered by an external device. The identification means can be a chip, a code, such as a QR code, or the like.

[0060] Preferred embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally identical components.

[0061] They show, schematically Fig. 1 is an isometric view of a transport trolley of an arrangement, Fig. 2 is a front view of a protective device of the arrangement with a taut cover of the protective device, Fig. 3 is a detailed view of the cover, Fig. 4 is an isometric view of the arrangement with the transport trolley and the protective device when attached to the transport trolley and in another embodiment of the protective device, Fig. 5 is an isometric view of the arrangement with the protective device mounted on the transport trolley, Fig. 5a is an isometric partial view of the arrangement from Fig. 5 , Fig. 6 an isometric front view of a part of the protective device from Fig. 2 in another partially folded state of the cover, Fig. 7 is an isometric partial view of a front side of the protective device in a further embodiment and taut cover, Fig. 8 is an isometric partial view of the front side of the protective device in another embodiment, Fig. 9 is an isometric partial view of a rear side of the protective device in another embodiment, Fig. 10 the view from Fig. 2 in another embodiment of the protective device, Fig. 11 the view from Fig. 2 in a further embodiment of the protective device, Fig. 12 the view from Fig. 2 in another embodiment of the protective device, Fig. 13 an isometric partial view of the arrangement with protective device from Fig. 12 , Fig. 14 an isometric partial view of the arrangement in a further embodiment of the protective device, Fig. 15 a detailed view of the arrangement from Fig. 14 , Fig. 16a side view of a cable pull of the protective device from Fig. 14 , Fig. 17 an isometric view of the transport trolley with a holding device, Fig. 18 a top view of the holding device, Fig. 19 a side view of the holding device.

[0062] A transport trolley 1, such as the one used in Fig. 1 is shown, serves for the transport of goods not shown. The transport trolley 1 is designed in particular as a plant transport trolley 2, which is used for transporting plants not shown, for example flowers and the like, as goods. The transport trolley 1 is designed purely as an example as a so-called CC container 3. The transport trolley 1 has a frame 4, which has a plurality of supports 6 in the form of corner posts or profiles 7 running along a vertical direction 5.The supports 6 are spaced apart from one another in a circumferential direction 8 of the transport carriage 1 and arranged one after the other in such a way that they define four outer sides 9 of the transport carriage 1, which follow one another in the circumferential direction 8, wherein the respective support 6 defines a corner 10 of two outer sides 9, or sides 9 for short, which follow one another in the circumferential direction 8 and is thus arranged in a corresponding corner region 57 of the transport carriage 1, which extends in the vertical direction 5. The transport carriage 1 has a lower base floor 11 in the vertical direction 5, which is rectangular in shape, wherein the respective support 6 is received in a base floor corner of the base floor 11. Accordingly, the supports 6 are arranged at the corners of a rectangle in a plan view along the vertical direction 5.The base floor 11 has long sides and short sides, so that two opposite outer sides 9 are smaller than the other two opposite outer sides 9. The small outer sides 9 are also referred to below as small outer sides 9' or small sides 9', while the large outer sides 9 are also referred to as large outer sides 9" or large sides 9". On the side of the base floor 11 facing away from the supports 6, rollers 12 are attached so that the transport trolley 1 can be easily moved. Accordingly, the base floor 11 is also a chassis of the transport trolley 1. Each support 6 is provided with a plurality of receptacles 13 spaced apart from one another in the vertical direction 5. The receptacles 13 serve the purpose of detachably inserting floors 14 of the transport trolley 1 into the transport trolley 1, such that the respective floor 14 can be attached to the supports 6 and detached therefrom again.The shelves 14 are thus supported by the supports 6. The respective shelf 14, in particular the base shelf 11, serves to store the transported goods, for example plants, which are transported by the transport trolley 1.

[0063] For the external or lateral covering of the transport trolley 1, ie for covering or covering at least one of the outer sides 9 of the transport trolley 1, a protective device 15 is used, as is shown for example in Fig. 2 The protective device 15 serves in particular to secure and / or protect the transported goods during transport and / or to protect the transport vehicle 1. Such a protective device 15, as shown in Fig. 2 shown, extends in the vertical direction 5 and a transverse direction 16 running transversely to the vertical direction 5. The protective device 15 has a flat covering 17 made of a covering material 18, which is preferably a textile 19. The covering material 18 is selected such that it can be deformed, in particular folded and tightened, like a cloth. Fig. 2 a taut state of the cover 17 is shown, with a front side 20 of the cover 17 being visible. In this state, the cover 17 has a rectangular shape which has an upper edge 21 in the vertical direction 5 and an opposite lower edge 22, which each run in the transverse direction 16. In the transverse direction 16, the cover 17 has opposite side edges 23 which run in the vertical direction 5. In the region of the upper edge 21, at least one holding means 24 of the protective device 15 is attached to the cover 17. In the example shown, four such holding means 24 are provided, which are spaced apart from one another in the transverse direction 16 such that one of the holding means 24 is assigned to the respective corner region 57 of the transport carriage 1. In the region of the lower edge 22, at least one tensioning means 25 of the protective device 15 is attached to the cover 17.In the example shown, four such clamping means 25 are provided, with one of the clamping means 25 being assigned to the respective corner region 57 of the transport carriage 1. In the region of one of the side edges 23, hereinafter also referred to as the first side edge 23', at least one connecting means 26 is attached to the covering 17, and in the region of the other side edge 23, hereinafter also referred to as the second side edge 23", at least one counter-connecting means 27 is attached. In the example shown, six connecting means 26 spaced apart from one another in the vertical direction 5 are provided in the region of the first side edge 23', and six counter-connecting means 27 spaced apart from one another in the vertical direction 5 are provided in the region of the second side edge 23", with each connecting means 26 being aligned with an associated counter-connecting means 27 in the transverse direction 16.In this example, the holding means 24 each have a hook 40, in particular a snap hook 41, and a non-visible loop 45, with which the hook 40 is connected to the cover 17, in particular fixed thereto. The respective tensioning means 25 also has a hook 40, in particular a flat hook 49, and a belt system 50, with which the hook 40 is connected to the cover 17, in particular fixed thereto, wherein the belt system 50 can be adjusted in the height direction 5. In this example, the connecting means 26 and the counter-connecting means 27 each have a ring 46, in particular a D-ring 47, and a loop 45, with which the ring 46 is connected to the cover 17, in particular fixed thereto. In addition, a hook 40 (not shown) of the connecting means 26 or counter-connecting means 27 can be attached to the respective ring 46.

[0064] On a rear side 28 of the covering 17 facing away from the front side 20, reinforcements 29 are attached along the upper edge 21 and the lower edge 22, for example in the form of a band 30 attached, in particular sewn, to the covering 17. The holding means 24 and the tensioning means 25 are attached to the covering 17 in the region of these reinforcements 29, 30, in particular fixed to the reinforcements 29. In addition, a reinforcement 29 is attached to each of the side edges 23, running along the associated side edge 23, wherein the connecting means 26 and the counter-connecting means 27 are attached, for example fixed, in the region of the reinforcements 29, in particular to the reinforcements 29. Due to the arrangement of the reinforcements 29 on the rear side 28, these are in Fig. 2 shown in dashed lines. It can also be seen that in the area of ​​the holding means 24, further reinforcements 29 are provided, which extend essentially continuously in the vertical direction 5. These reinforcements 29 correspond to the corner regions 57 of the transport carriage 1 and are preferably arranged offset in the circumferential direction 8 relative to the corresponding corner 10. It can also be seen that in the area of ​​the clamping means 25, further reinforcements 29 are provided, which are limited in the vertical direction 5 and are arranged adjacent to the clamping means 25 in the transverse direction 16. Fig. 2 In the exemplary embodiment shown, a plurality of slots 31 are provided in the cover 17 approximately centrally in the height direction 5, which are delimited in the height direction 5 and are assigned to the corner regions 57 of the transport trolley 1. The slots 31 are each surrounded by reinforcements 29, in particular to prevent further enlargement of the slots 31. In this case, two slots 31 are provided in the region of the side edges 23, which are offset from one another in the height direction 5 and the transverse direction 16. The slots 31 each allow access to the associated support 6 and / or allow the passage of a securing means (not shown), for example a hook, for fixing the transport trolley 1 in a vehicle (not shown). These slots 31 are also referred to below as access slots 31.

[0065] In Fig. 3 1 shows a detailed view of the covering material 18, which is designed as a textile 19. It can be seen that the covering material 18 is designed as a knitted fabric 32, in particular as a warp-knitted fabric 33, and is in the shape of a perforated fillet 34. It can be seen that the covering 17 is thus breathable and partially transparent. Furthermore, the covering 17 thus has a low weight or a low density, for example, between 100 and 115 grams per square meter, and at the same time is sufficiently mechanically resilient to ensure adequate securing of the transported goods during transport. The knitted fabric 32 is designed such that the textile 19, and thus the covering 17, has greater elasticity in the vertical direction 5 than in the transverse direction 16.

[0066] Fig. 4 shows an arrangement 35 with the transport carriage 1 and the protective device 15 in another embodiment of the protective device 15, which differs from the one shown in Fig. 2 Shown differs in particular by the absence of the slots 31. In addition, the counter-connecting means 27 are designed differently and have a hook 40. In the example shown, in contrast to the Fig. 1 In the example shown, only three floors 14 are arranged in the transport trolley 1. In this case, a state of the protective device 15 attached to the transport trolley 1 can be seen. In this state, at least one of the holding means 24 is attached to the transport trolley 1 in such a way that the protective device 15 is held on the transport trolley 1. In contrast, the connecting means 26 and the counter-connecting means 27 are not attached, so that an open state of the protective device 15 can be seen. In the example shown, the respective holding means 24 is attached in a form-fitting and detachable manner to a receptacle 13, which is the uppermost in the vertical direction 5, of an associated carrier 6, so that the corresponding receptacle 13 forms an upper structure 36 of the transport trolley 1 for the associated holding means 24, which interacts detachably, in particular in a form-fitting manner, with the associated holding means 24.Of course, embodiments in which the holding means 24 are attached to other upper structures 36 are also conceivable.

[0067] In Fig. 5 an assembly state 37 of the protective device 15 is shown, wherein in the assembly state 37 all holding means 24 and tensioning means 25 are attached to the transport carriage 1 and thus tension the cover 17 in the vertical direction 5, while the connecting means 26 and the counter-connecting means 27 tension the cover 17 in the transverse direction 16, which corresponds to the circumferential direction 8. Fig. 5a shows another isometric view of the arrangement 35 from Fig. 5 in the region of one of the corner regions 57 and the base floor 11. In the example shown, the transport trolley 1 is essentially completely enclosed by the protective device 15 in the circumferential direction 8, such that three of the outer sides 9 are essentially covered by the protective device 15. The side edges 23 of the covering 17 run centrally in the region of one of the outer sides 9, in this example in the region of one of the smaller outer sides 9', and are spaced from one another, so that a gap 38 running in the vertical direction 5 is formed, which allows visual access into the interior of the transport trolley 1.

[0068] The tensioning of the covering 17 in the vertical direction 5 is achieved by, on the one hand, the respective holding means 24 interacting with the associated upper structure 36 and the respective tensioning means 25 interacting with a lower structure 39 of the transport carriage 1, which is offset in the vertical direction 5 from the upper structure 36 towards the base floor 11. As a result, in the example shown, a holding means 24 is provided along the respective support 6. In the respective corner region 57, a rib 42 protruding from the side of the base floor 11 facing away from the supports 6 is also formed, which rib serves as the lower structure 39 and with which the associated tensioning means 25 interacts.

[0069] In the example shown, a connecting means 26 and a counter-connecting means 27 each cooperate to tension the cover 17 in the transverse direction 16 and thus in the circumferential direction 8. For this purpose, a connecting means 26 and a counter-connecting means 27 each form a, in particular positive-locking, detachable connection 43, wherein the respective connection 43 tensions the cover 17 in the transverse direction 16 of the protective device 15, which in the assembled state 37 corresponds to the circumferential direction 8. A total of six connections 43 are provided, spaced apart from one another in the vertical direction 5. The respective connection 43 is formed by the hook 40 of the respective counter-connecting means 27 engaging the ring 46 of the connecting means 26.Tensioning the cover 17 in the vertical direction 5 and in the transverse direction 16, or in the circumferential direction 8, results in a stable and reliable covering of the transport trolley 1 and in a stable and reliable securing of the goods transported by the transport trolley 1, in particular plants. This also applies to geometric changes, in particular to local changes in the circumference of the transport trolley 1, which can occur if at least one of the floors 14 of the transport trolley 1 is removed.

[0070] In Fig. 6 is that in Fig. 2 shown embodiment of the protective device 15, wherein in Fig. 6 An isometric view of the front side 20 of the covering 17 in the region of the first side edge 23' with the connecting means 26 is shown. Here, the covering 17 is not shown in a completely taut state, but a state can be seen in which the covering 17 has or forms individual folds 44.

[0071] Fig. 7 shows an isometric partial view of the protective device 15 in a further embodiment in the region of the side edge 23 with the counter-connecting means 27 or the second side edge 23". It can be seen in particular that the visible counter-connecting means 27, like the connecting means 26, has a loop 45 and a ring 46, in particular a D-ring 47. A hook 40 is additionally attached to the ring 46 via an elastic band 48, which hook engages in the ring 46 of the associated connecting means 26 to establish the associated connection 43. This also corresponds to the design of the counter-connecting means 27 in the Fig. 4 and 5shown example. This ensures, on the one hand, a simple establishment of the connection 43. Furthermore, the connection 43 is elastic in the transverse direction 16 and the circumferential direction 8, respectively, so that dimensional changes of the transport carriage 1, particularly in the circumferential direction 8, are again better compensated for.

[0072] In Fig. 7 In addition, two variants of the clamping device 25 can be seen, which can be used together or alternatively. In the first variant, the clamping device 25, as shown in the Fig. 2 , 4 and 5In the examples shown, the clamping device 25 is equipped with a hook 40, in particular a flat hook 49, preferably made of metal, which is attached to the cover 17 via the belt system 50 of the clamping device 25, wherein the clamping device 25 is attached to the cover 17 at a region of the cover 17 provided with a reinforcement 29. Thus, the position of the hook 40 can be varied in the vertical direction 5, allowing simplified attachment to the transport carriage 1 and / or simplified compensation of manufacturing tolerances in the vertical direction 5. Furthermore, the hook 40 can thus be easily replaced. In the other variant, the clamping device 25 is designed as a loop 60, which interacts detachably with the lower structure 39 of the transport carriage 1, in particular in a form-fitting manner, and is hereinafter referred to as the connecting loop 60.

[0073] Fig. 8 shows an isometric partial view of the protective device 15 in a further embodiment, wherein a front view of the protective device 15 is shown in the area of ​​the upper edge 21 and the side edge 23 with the at least one connecting means 26. One of the holding means 24 can be seen, which, as in the examples of Fig. 2 , 4 and 5 , a hook 40, in particular a snap hook 41, which is attached to the cover 17 via a loop 45 of the holding means 24.

[0074] In this example, three connecting means 26 are also provided in the region of the visible side edge 23, 23', offset from one another in the transverse direction 16. This means that the respective connecting means 26 can interact with the same counter-connecting means 27. This leads to increased variability of the protective device 15 in the transverse direction 16 or in the circumferential direction 8, so that, in particular, changes in the transport carriage 1 in the circumferential direction 8 can be better compensated. One of the three connecting means 26 is also arranged offset from the other two in the vertical direction 5, whereby corresponding changes in the transport carriage in the vertical direction 5 can be better compensated.

[0075] Another embodiment of the protective device 15 is shown in Fig. 9 , showing the rear side 28 of the protective device 15. In this embodiment, as in the embodiment of the Fig. 2 , at the lower edge 22 and in the transverse direction 16, a slot 51 is introduced essentially centrally, which extends in the vertical direction 5 and is limited. In Fig. 9 a state can be seen in which the slot 51 is pulled apart or spread in the transverse direction 16. With this slot 51, increased flexibility of the covering 17 is achieved in the region of the lower edge 22, in order to be able to absorb increased forces and / or to achieve improved adaptation to geometric changes in the transport carriage 1. Accordingly, the spread state of the slot 51, which is also referred to below as the compensating slot 51, occurs in particular in the assembled state 37. The compensating slot 51 is provided with reinforcements 29 on the edges to prevent further expansion of the slot 51. In this example, opposite legs 52 of the compensating slot 51 are also connected to one another by a reinforcement section 58, which can in particular be designed as a band 30, in order to further stabilize the compensating slot 51.

[0076] In Fig. 10 Another embodiment of the protective device 15 can be seen. This embodiment differs from the example in Fig. 2 in particular by the fact that the connecting means 26 and the counter-connecting means 27 are connected in the area of ​​one of the large sides 9", so that the side edges 23 are arranged in the area of ​​one of the large sides 9". This results in particular from the distance of the holding means 24 and tensioning means 25 to the side edges 23 in the transverse direction 16. In addition, in the example shown, the tensioning means 25 are each designed as a loop 60 or connecting loop 60, in which in Fig. 7 shown. Furthermore, two compensating slots 51 are provided in the lower edge 22. A further difference is that two rows of counter-connecting means 27 are provided, running in the vertical direction 5 and spaced from one another in the transverse direction 16, so that in the assembled state 37, a distance between the side edges 23 can be varied, in particular the gap 38 can be minimized. In particular, for this purpose, an elastic band 48 can be attached to a counter-connecting means 27 of one of the rows, guided through the ring 46 of the associated connecting means 26, and attached to the adjacent counter-connecting means 27 of the other row.

[0077] Fig. 11 shows a further embodiment of the protective device 15. This embodiment differs from the previously shown examples in particular in that the cover 17 and thus the protective device 15 is smaller in the transverse direction 16, such that with this protective device 15 in the assembled state 37 only one of the large sides 9" of the transport carriage 1 is covered. It is possible to mount several such protective devices 15 on the transport carriage 1 in order to cover several sides 9 of the transport carriage 1.

[0078] Another embodiment of the protective device 15 is shown in Fig. 12 This embodiment differs from the ones shown in the Fig. 2 and 4 to 10 shown examples, in particular by the dimensioning of the cover 17 in the vertical direction 5, which is smaller than in the previously shown examples. Thus, the protective device 15 in the assembled state 37 covers all sides 9 of the trolley 1, but in the vertical direction 5 only a part of the respective side 9. This protective device 15 can be mounted in particular in a higher area of ​​the trolley 1. As in the example of Fig. 10 , two rows of counter-connecting means 27 are provided. In this example, a belt system 50 is also provided in the area of ​​the upper edge 21 and the lower edge 22, with which the extension of the covering 17 in the transverse direction 16 can be changed. Thus, geometric changes of the transport carriage 1, in particular in the circumferential direction 8, can be better compensated. Fig. 12 In the example shown, the tensioning means 25 each have a ring 46, in particular a D-ring 47, to which a hook 40 (not shown) can be attached, in particular via a rubber band 48 (not shown). Also, a hook 40 (not shown) of a protective device 15 (not shown) arranged further down in the vertical direction 5 can be attached to the respective ring 46. Fig. 13 shows the arrangement 35 with this protective device 15 in the area of ​​the belt systems 50. It can be seen in particular that the respective belt system 50 is attached to the reinforcement 29 running along the associated edge 21, 22.

[0079] Fig. 14 shows a further embodiment of the arrangement 35 in another embodiment of the protective device 15 in the assembled state 37. Only a floor 14 and the supports 6 of the transport carriage 1 are visible. In this embodiment, the protective device 15 or the covering 17 extends, similar to the one shown in Fig. 13 shown example, in the height direction 5 only over a small part of the transport carriage 1, so that the corresponding sides 9 in the height direction 5 are only partially covered.

[0080] Fig. 15 shows the arrangement 35 from Fig. 14 in the area of ​​the side edges 23 of the protective device 15. In this embodiment, the upper structures 36 are not formed by the uppermost receptacle 13 of the respective carrier 6, but by a receptacle 13 arranged further down in the vertical direction 5. The counter-connecting means 27 are equipped with hooks 40, in particular snap hooks 41, whereby in this embodiment only two such

[0081] Counter-connection means 27 are provided. The protective device 15 is further provided with a tension system 53, which Fig. 16 is shown separately. The tension system 53 has a cable 54 and a hook 40. The cable 54 is guided through the ring 46 of the respective connecting means 26 and connects these to the counter-connecting means 27. In addition, the cable 54 is guided along one of the supports 6 via a guide 59, which can be attached in particular to one of the holding means 24, and is attached to the support 6 with the aid of the hook 40 of the tension system 53, in particular to a receptacle 13 of the support 6, which is arranged below the covering 17 in the vertical direction 5. At the end of the cable 54 remote from the hook 40, a further hook 40 is attached via a rubber band 48, wherein this hook 40 can be attached to one of the connecting means 26. This results in tensioning in the transverse direction 16 or in the circumferential direction 8.

[0082] It is understood that the different protective devices 15, which differ in particular along the extension in the vertical direction 5 and / or in the transverse direction 16, are provided as part of a modular system and can be optionally attached to the transport trolley 1 in order to cover it individually.

[0083] All shown occultations 17 can be seen from the Fig. 3 shown knitted fabric 32 must be made or consist of.

[0084] A simplified transport of protective devices 15 is made possible by a holding device 55, which is Fig. 17 The holding device 55 is in Fig. 18 in a top view and in Fig. 19 shown in a side view. The holding device 55 is made of a flexible material, for example textile, and has four hooks 40, each of which can be detachably attached to one of the supports 6, in particular hooked into an associated receptacle 13. In addition, at least one hanging loop 56 is provided on the holding device 55 for suspending and holding protective devices 15, wherein the example shown has several hanging loops 56, through which, as in Fig. 17 As can be seen, at least one protective device 15 can be passed through and thus suspended and held. This allows several protective devices 15 to be stored and transported compactly and safely within the same transport trolley 1.

[0085] InIn the examples shown, the holding means 24 and the clamping means 25 are or will be mounted in corner regions 57 of the transport carriage 1. Of course, the holding means 24 and / or the clamping means 25 can also be mounted outside the corner regions 57 on the transport carriage 1, for example, on one of the floors 14. Accordingly, at least one of the structures 36, 39 can be formed in the region of the floor 14 or by the floor 14.

Claims

1. Arrangement (35) with a transport trolley (1) and a protective apparatus (15) which covers at least one side (9) of the transport trolley (1), the transport trolley (1) having multiple carriers (6) and at least one base (14) supported by the carriers (6) for placing the goods to be transported, - wherein the protective apparatus (15) has a covering (17) which extends in a vertical direction (5) and in a transverse direction (16) extending transversely to the vertical direction (5), such that the covering (17) covers the sides of the transport trolley (1) in a peripheral direction (8) of the transport trolley (1), - wherein the protective apparatus (15) has at least one connecting means (26) and at least one opposite connecting means (27) spaced apart from the connecting means (26) in transverse direction (16), and the at least one connecting means (26) and the at least one opposite connecting means (27) tension the covering (17) in transverse direction (16), - wherein the protective apparatus (15) has at least one holding means (24) which attaches the covering (17) to an upper structure (36) of the transport trolley (1) such that the protective apparatus (15) is held on the transport trolley (1), - wherein the covering (17) is made from a covering material (18), characterized in that - the protective apparatus (15) has at least one tensioning means (25) which is spaced apart from the at least one holding means (24) in vertical direction (5) and which attaches the covering (17) to a lower structure (39) of the transport trolley (1) which is spaced apart from the upper structure (36) in vertical direction (5), - in that the at least one holding means (24) and the at least one tensioning means (25) tension the covering (17) in vertical direction (5), - in that the at least one holding means (24) and the at least one tensioning means (25) are arranged in such a way that they are each arranged in a corner region (57) of the transport trolley (1) when attached to the transport trolley (1).

2. Arrangement according to claim 1, characterized in that the holding means (24) and / or the tensioning means (25) has a loop (45, 60) attached to the covering (17).

3. Arrangement according to claim 1 or 2, characterized in that the holding means (24) and / or the tensioning means (25) has a hook (40) for attachment to the transport trolley (1), wherein it can be provided in particular that the hook (40) is attached to the loop (45) according to claim 2.

4. Arrangement according to any one of claims 1 to 3, characterized in that a connecting means (26) and an opposite connecting means (27) respectively form a detachable connection (43) such that the connection (43) tensions the covering (17) in transverse direction (16) in the assembled state (37).

5. Arrangement according to any one of claims 1 to 4, characterized in that the protective apparatus (15) has respectively at least two connecting means (26) and opposite connecting means (27) spaced apart from each other in vertical direction (5).

6. Arrangement according to any one of claims 1 to 5, characterized in that the protective apparatus (15) has an associated tensioning means (25) to the respective holding means (24).

7. Arrangement according to any one of claims 1 to 6, characterized in that an elasticity of the covering material (18) is greater in vertical direction (5) than in transverse direction (16).

8. Arrangement according to any one of claims 1 to 7, characterized in that the covering material (18) is in the form of a textile (19).

9. Arrangement according to any one of claims 1 to 8, characterized in that the covering fabric (18) is in the form of a knitted fabric (32), in particular in the form of a warp knitted fabric (33).

10. Arrangement according to any one of claims 1 to 9, characterized in that the connecting means (26) and / or the opposite connecting means (27) is configured to be elastic in transverse direction (16).

11. Arrangement according to any one of claims 1 to 10, characterized in that at least one reinforcement (29) is attached to the covering material (18).

12. Arrangement according to any one of claims 1 to 11, characterized in that the covering (17) is provided with a slit (51) limited in vertical direction (5) on a lower edge (22) facing the tensioning means (25).

13. Arrangement according to any one of claims 1 to 12, characterized in that transverse end side edges (23) of the covering (17) are spaced apart from one another in transverse direction (16) in the assembled state (37).

14. Arrangement according to any one of claims 1 to 13, characterized in that - at least one of the at least one tensioning means (25) cooperates with at least one of the connecting means (26) and / or opposite connecting means (27) in order to tension the covering (17) in vertical direction (5) together with the at least one holding means (24), - the cooperation of the tensioning means (25) with the at least one connecting means (26) and / or opposite connecting means (27) takes place in the manner of a cable guide and / or rubber guide such that a cable (54) and / or rubber is guided through those connecting means (26) and / or opposite connecting means (27) with which the tensioning means (25) cooperates.