Lifting and tipping device

Abstract

The present invention relates to a lifting and tilting device (100) for a waste collection vehicle with a transport unit (10) having a pivot shaft (14) and a receptacle (16) for a waste container, a drive device (20) by means of which the transport unit is raised along a lifting direction, a housing (30) for the transport unit having a guide slot (40) for the pivot shaft extending in the lifting direction, and a cover (50) for the guide slot, wherein the cover is automatically placed on the guide slot depending on the position of the transport unit.

Description

[0001] The present invention relates to a lifting and tilting device for a waste collection vehicle.

[0002] Waste collection vehicles are equipped with devices to pick up waste containers and empty their contents into a collection compartment. Generally, the waste containers are first lifted and then tilted during or after the lifting process, so that the contents are emptied through an opening into the collection compartment.

[0003] The waste container is picked up by a pallet truck, which is moved by a drive device via a pivot shaft. The drive device moves the pivot shaft in the lifting direction and rotates it about a pivot axis that runs perpendicular to the vehicle's vertical direction, so that the waste container is tilted into an emptying position. Such designs are disclosed, for example, in DE 38 35 748 C1 or WO 2020 / 151849 A1.

[0004] To protect the drive mechanism from external influences and prevent it from posing a health risk to waste collectors, it is usually enclosed in a housing with an opening through which the pivot shaft passes. This opening provides an entry point for rain, splash water, and dirt, jeopardizing the operational reliability and lifespan of the drive mechanism. Furthermore, there is a risk of injury if people reach into or through this opening.

[0005] A cover for this opening is already known from EP 4 261 153 A1. This design provides two cover elements that can be slid relative to each other and are arranged in an overlapping manner, so that they slide over one another when the pivot shaft is moved. However, these cover elements can become jammed, which at least partially eliminates the protective effect or necessitates temporarily shutting down the lifting and tilting device to restore the protective effect.

[0006] The object of the present invention is therefore to avoid the disadvantages of the prior art.

[0007] This problem is solved by the lifting and tilting device according to claim 1. Advantageous embodiments are the subject of the dependent claims.

[0008] The lifting and tilting device according to the invention comprises a traversing unit with a pivot shaft and a receptacle for a waste container, a drive device by means of which the traversing unit is raised along a lifting direction, a housing for the traversing unit which has a guide slot for the pivot shaft extending in the lifting direction, and a cover for the guide slot. When used on a rear loader, the pivot axis of the pivot shaft runs in a transverse direction of the vehicle, i.e., in particular perpendicular to the vertical axis and perpendicular to the direction of travel of the waste collection vehicle. When used on a side loader, the pivot axis runs parallel to the direction of travel. Depending on the position of the traversing unit along the lifting direction, the cover is automatically lowered into the guide slot.The term "laying down" refers specifically to a movement in which the cover does not move relative to the guide slot along the stroke direction. Laying down can occur, for example, by rolling the cover or by moving it perpendicular to the stroke direction. Laying down preferably results in the guide slot being at least partially covered.

[0009] The drive unit is located partly inside and partly outside the housing. The pivot shaft passes through the guide slot and is therefore also located partly inside and partly outside the housing.

[0010] The drive device can, for example, comprise an electric motor connected to the transport unit via a traction element, in particular a chain or a rope. Rotation of the electric motor then causes the transport unit to be raised via the traction element. Alternatively, the drive device can be hydraulically operated. In this case, the transport unit can be raised indirectly or directly via a hydraulic cylinder.

[0011] The cover for the guide slot, known from the prior art, is moved relative to the guide slot by the movement of the traversing unit in the stroke direction, ensuring that it always covers the free sections of the guide slot not covered by the traversing unit. This results in relative movement between the cover and the guide slot or the housing. This movement causes wear on the cover and, in the long term, also on the housing. Furthermore, individual parts of the cover can become jammed, thus blocking its movement. Since small particles often enter the guide slot when emptying waste containers, the risk of blockage is comparatively high. The inventors recognized that these problems can be permanently avoided by resting the cover against the guide slot.The placement process is automatic, depending on the position of the moving unit, so that the guide slot can be covered as much as possible at any time, except where the moving unit passes through the guide slot.

[0012] Automatically, this means that a movement of the traversing unit directly leads to the cover being placed down, particularly in the position where the traversing unit was located before the movement. The cover is thus moved in accordance with the movement of the traversing unit. Preferably, no separate drive is required for placing the cover down; instead, the placement occurs as a direct consequence of the movement of the traversing unit.

[0013] If the traversing unit is to be moved to a position where the cover is currently obscuring the guide slot, the cover can be automatically removed from the guide slot. This removal preferably occurs without any relative movement between the cover and the guide slot in the stroke direction. Particularly preferably, the cover is rolled up or moved vertically away from the guide slot for this purpose.

[0014] The covering is preferably placed and removed by automatically moving it section by section towards or away from the guide slot, depending on the position of the transport unit. These sections can also be sections of a continuous cover.

[0015] In advantageous further developments, the cover is placed on an inner side of the housing and / or on an edge of the guide slot. The housing interior provides sufficient space for a mechanism to place the cover. In this way, the mechanism is also simultaneously protected by the housing. Placing the cover on the edge of the guide slot ensures that the slot is completely covered, preventing any particles from passing through it.

[0016] Depending on the position of the traversing unit, the guide slot above and / or below the traversing unit is free and can be covered by the cover, depending on the design. If the traversing unit is in its upper end position at the top of the guide slot, the guide slot is preferably only free below the traversing unit. The same applies analogously to the lower end position. In some embodiments, however, the guide slot above and below the traversing unit may also be free in the upper and / or lower end position and require a cover. The cover according to the invention can, in any case, cover open sections of the guide slot both above and below; the cover can therefore be placed on the guide slot below and / or above the traversing unit.This can be achieved using two separate partial covers or a single, shared cover; the cover can therefore be one-piece or multi-piece. Two separate partial covers have the advantage that if one part fails, the other remains functional. However, using a single cover simplifies the construction of the lifting and tilting device.

[0017] The cover elements known from the prior art are cover plates. The cover according to the invention is preferably flexible and / or strip-shaped. The inventors have found that a flexible, strip-shaped cover can be easily placed on the guide slot, in particular rolled off. A strip is understood to be a component that is significantly longer than it is wide and thick. Typically, the width is also significantly greater than the thickness (L >> B >> D). A strip enables complete coverage of the previously open areas of the guide slot across its width. A cover is particularly flexible if it can be deflected or wound up on a roller.

[0018] The cover is preferably made of a flexible yet sufficiently robust material. Flexibility allows the cover to be wound around or deflected by rollers. Robustness, on the other hand, ensures that the cover securely covers the guide slot even if something bumps against it. Woven tarpaulins or fiber-reinforced plastics have proven particularly suitable, although thin metal sheets are also an option. These materials also possess a sufficiently long service life despite the stresses of repeated winding, unwinding, and deflection. However, the cover does not necessarily have to be made of solid material. If, for example, the cover is only intended to prevent people from reaching into the guide slot, a grid-like design is also possible.

[0019] The length of the band is preferably adapted to the length of the guide slots. For example, if a band is only intended to cover an area below the traversing unit, the length of the band is at least as great as the distance of the traversing unit in its upper end position to a lower end of the guide slot. If a single cover is intended to cover the entire guide slot, the cover preferably has a length that is at least equal to the length of the guide slot. Due to any deflection of the cover, the length is generally considerably greater in each case.

[0020] At least one end of the cover is preferably fixed relative to the housing. This refers in particular to an end in the longitudinal direction. This ensures that the cover does not move relative to the guide slot in the direction of travel. Preferably, at least one end, and preferably both ends, are fixed to the inside of the housing. This effectively prevents particles from entering the housing through the guide slot. Furthermore, the cover can be attached directly to the lower or upper end of the guide slot, thereby ensuring a uniform, tight seal between the cover and the guide slot or the inside of the housing, at least at that end. The end or ends can be fixed by means of an adjustable bracket. This allows, for example, readjustment of the fixation if the cover changes length due to continuous use.By readjusting the cover, it can always be kept under tension in its longitudinal direction, thus ensuring the functionality of the cover permanently.

[0021] For unrolling the cover, the transport unit preferably includes an unrolling unit with at least one roller for the cover. A roller enables, among other things, the deflection of the strip-shaped cover, i.e., a change in its direction. The cover thus runs over the roller. The rollers include, in particular, unloading rollers, storage rollers, tensioning rollers, and deflection rollers, whereby a single roller can also fulfill several of these functions. An unloading roller directly participates in the unloading process of the cover at the guide slot. For example, sections of the cover can be wound onto a storage roller when they are not currently needed as a cover. A storage roller preferably has an integrated return mechanism, for example, a torsion spring. The axes of rotation of the rollers preferably run perpendicular to the lifting direction and perpendicular to the pivoting axis, i.e., in particular, in the direction of travel of the waste collection vehicle.

[0022] Preferably, the traversing unit has at least one support roller located in the housing adjacent to the guide slot and at either an upper or lower end of the traversing unit. The support roller thus moves with the traversing unit. A section of the cover extends above or below the traversing unit. The support roller deflects the cover so that, after this section, it runs between the support roller and the guide slot. In this way, the support roller ensures that the cover directly covers the guide slot above or below the traversing unit. Particularly preferably, a support roller is provided at both the upper and lower ends of the traversing unit. This ensures that both parts of the guide slot are covered.

[0023] The moving unit preferably has at least one tension roller that exerts a force on the cover, thereby keeping the cover taut in its longitudinal direction. The tension roller prevents the cover from moving loosely around the roller. For this purpose, the tension roller can, for example, be pre-tensioned in a direction perpendicular to its axis of rotation by a spring. The roller body itself is located between the cover and the spring.

[0024] The traversing unit preferably has at least one deflection roller, which is arranged in the housing and at an end section of the traversing unit located away from the guide slot. A section of the cover extends behind the traversing unit, viewed from the guide slot, and the deflection roller deflects the cover so that it then runs above or below the traversing unit. In this way, the cover is guided directly around the traversing unit. This reduces the space required for the cover inside the housing. Particularly preferably, two deflection rollers are provided, with one positioned at the upper end of the traversing unit and deflecting the cover so that it runs above the traversing unit. The other deflection roller is then positioned at the lower end of the traversing unit and deflecting the cover so that it runs below the traversing unit.

[0025] For centering the cover, it is preferably provided that at least one roller has a larger or smaller diameter at its center than at its axial ends. Such a roller can be formed by two conical parts rotating on the same axis of rotation and facing each other with their thin ends. However, the roller can also be a single piece and, deviating from a cylindrical shape, be convex or concave on its outer surface.

[0026] In advantageous further developments, the cover is laid down by a placement roller of the transport unit, with the cover running between the placement roller and the inside of the housing. The placement roller also serves as a guide element to ensure secure and defined placement of the cover. For particularly secure guidance of the cover during placement, a gap A is provided between the placement roller and the inside of the housing, which essentially corresponds to the thickness D of the cover. The gap A can be slightly larger than the thickness D to prevent the cover from being pinched between the placement roller and the inside. However, the gap should not be significantly larger than the thickness D to prevent the formation of a gap between the inside of the housing and the cover.

[0027] In a preferred embodiment, the band-shaped cover is connected to the housing at its lower end, particularly fixed to the inside of the housing. From there, the cover extends upwards along the stroke direction to the current position of the traversing unit. There, the cover initially runs between the inside of the housing and the discharge roller and is then deflected away from the inside. The cover then continues along the underside of the traversing unit to a deflection roller, where it is again deflected upwards in the stroke direction. The cover continues in this manner to its upper end. At the upper end, the cover is also connected to the housing, particularly fixed to a side of the housing opposite the inside. In this embodiment, only the section of the guide slot located below the traversing unit is covered.When the moving unit moves upwards, the cover is automatically placed directly below the moving unit in the guide slot, without any further action required. When the moving unit moves downwards, the cover is automatically removed from the guide slot directly below the moving unit.

[0028] In another, equally preferred embodiment, the band-shaped cover is connected to the housing at its lower end, particularly fixed to the inside of the housing. From there, the cover extends upwards along the stroke direction to the current position of the traversing unit. There, the cover initially runs between the inside of the housing and the support roller and is then deflected away from the inside. The cover then continues along an underside of the traversing unit to a deflection roller, where it is again deflected upwards in the stroke direction. It then encounters another deflection roller, from which it is deflected back towards the inside of the housing. From the deflection roller, the cover initially runs along an upper side of the traversing unit to another support roller, from which the cover is once again deflected upwards in the stroke direction.The cover then runs between this support roller and the inside of the housing, and subsequently continues along the inside. At its upper end, the cover is connected to the housing, preferably being fixed to the inside in this embodiment. In this embodiment, the section of the guide slot above and below the traversing unit is covered. When the traversing unit moves upwards, the cover is automatically, without any further action required, placed directly below the traversing unit at the guide slot and removed from the guide slot directly above the traversing unit. When the traversing unit moves downwards, the cover is automatically placed directly above the traversing unit at the guide slot and removed from the guide slot directly below the traversing unit.

[0029] In advantageous embodiments of the invention, the cover is guided at least partially around the traversing unit, with the cover being guided behind the traversing unit, particularly when viewed from the guide slot. This is especially advantageous when a single band-shaped cover is used to cover the guide slot above and below the traversing unit. The cover is then preferably fixed at both ends relative to the housing. As the traversing unit moves, the cover is moved away from the guide slot in the direction the traversing unit is moving. Conversely, at the position from which the traversing unit is moving, the cover is placed against the guide slot. The traversing unit, in effect, displaces the cover wherever it moves. This design has proven to be particularly advantageous overall.Only a strip-shaped cover is required, the total length of which does not change when the moving unit is in motion.

[0030] In advantageous embodiments, the cover is wound onto a storage roller at one end, and the storage roller is pre-tensioned to prevent the cover from unwinding. The other end can be connected to the housing. The pre-tension can be achieved, for example, by a torsion spring on the storage roller. The storage roller is preferably arranged on the traversing unit, so that it moves up and down with the traversing unit. Depending on the position of the traversing unit, the cover is unwound from the storage roller and placed in the guide slot. If the traversing unit moves in the opposite direction, the pre-tension of the storage roller causes the cover to be removed from the guide slot and wound onto the storage roller. If the cover is multi-part, a separate storage roller can be provided for each part of the cover.

[0031] As mentioned above, the cover can change length through continuous use. The position of at least one of the rollers is preferably adjustable, particularly perpendicular to its axis of rotation. By readjusting the rollers, the cover can always be kept under tension in its longitudinal direction, thus ensuring its continued functionality.

[0032] The cover can also be made up of several individual elements, which are connected to each other by hinges, similar to a roller shutter. The individual parts of the cover are then placed or removed one after the other, depending on the position of the operating unit in the guide slot.

[0033] Furthermore, a waste collection vehicle with a lifting and tipping device as described above is disclosed. Preferably, the waste collection vehicle has two lifting and tipping devices. The lifting and tipping devices are preferably identical and arranged symmetrically at the rear of the waste collection vehicle.

[0034] Furthermore, a method for operating a lifting and tipping device for a waste collection vehicle is disclosed, comprising a transport unit with a pivot shaft and a receptacle for a waste container, a drive device by means of which the transport unit is lifted along a lifting direction, a housing for the drive device having a guide slot for the pivot shaft extending in the lifting direction, and a cover for the guide slot. In this method, the cover is automatically placed against the guide slot depending on the position of the transport unit.

[0035] The invention is illustrated and explained by way of example with reference to the drawings. The following figures are shown in the drawings: Figure 1 shows two lifting and tilting devices in a rear view, Figure 2 shows one of the lifting and tilting devices according to Figure 1 in a side view, Figure 3 a part of the lifting and tilting device according to Figure 2 In a perspective view, Figure 4 shows parts of the lifting and tilting device according to Figure 2 In a perspective view, Figure 5 shows parts of the lifting and tilting device according to Figure 2 in a perspective view, Figure 6 schematically shows another embodiment of a lifting and tilting device and Figure 7 schematically shows another embodiment of a lifting and tilting device.

[0036] The one in Figure 1The lifting and tipping devices 100 shown are arranged at the rear of a waste collection vehicle (rear loader), which is not shown. The two lifting and tipping devices 100 are largely identical in design and arranged symmetrically. The lifting and tipping devices shown in the Figure 1 The lifting and tilting device 100 shown on the left is in the Figures 2 to 5 shown in more detail.

[0037] The lifting and tilting device 100 has two parallel rods 102. The rods 102 define a lifting direction H for a traversing unit 10 of the lifting and tilting device 100. In the embodiment shown here, the lifting direction H is vertical.

[0038] The traversing unit 10 comprises a carriage 12, which is guided by the rods 102. The carriage 12 is raised by a drive device. The drive device 20 comprises an electric motor and a chain (not shown) by means of which the electric motor is connected to the traversing unit 10. Rotation of the electric motor causes the carriage 12 to move up or down along the rods 102.

[0039] The traversing unit 10 further comprises a pivot shaft 14 rotatably arranged on the slide (in Figure 1 not shown, see Figure 3 ) and a receptacle 16 arranged on the pivot shaft (in Figure 1 not shown, see Figure 3) for a waste container (not shown). To empty the waste container, the container is temporarily attached to the receptacle 16. The carriage 12 is then moved upwards by the drive device 20 along the stroke direction H until it reaches an upper end position. During or after this movement, the pivot shaft 14 is rotated, causing the contents of the waste container to be emptied into a receiving area of ​​the waste collection vehicle.

[0040] The lifting and tilting device 100 comprises a housing 30, which accommodates parts of the traversing unit 10 and the drive unit 20, in particular the carriage 12 and the chain by which the carriage 12 is connected to the electric motor. In this way, the components located in the housing 30 are protected from contamination by the waste being collected, as well as from other environmental influences such as rain or snow. The housing 30 has a guide slot 40 through which the pivot shaft 14 extends outwards from the carriage 12. The pivot shaft 14 extends from the carriage 12 towards the center of the vehicle. The guide slot 40 extends in the lifting direction H so that the pivot shaft 14 can follow the carriage 12 without obstruction.

[0041] The guide slot 40 poses a risk of allowing parts of the waste being collected, as well as other objects or environmental contaminants, to enter the interior of the housing 30. Furthermore, there is a possibility that people could insert their limbs into the housing 30 through the guide slot 40 from the outside, which presents a significant risk of injury. To prevent this, a cover 50 is provided, which is automatically positioned on the inside 32 of the housing 30, depending on the position of the traversing unit 10, and thus engages the guide slot 40.

[0042] In the embodiment shown here, the cover 50 is ribbon-shaped and has a thickness D, a width B, and a length before assembly. At its ends 52, 54, the cover 50 is firmly connected to the housing 30. At the upper end 52, the cover 50 is attached to the inner side 32 of the housing, spaced apart from it. At the lower end 54, the cover 50 is attached to the inner side 32 of the housing 30.

[0043] The interaction between the traversing unit 10 and the cover 50 is derived from the Figures 4 and 5The traversing unit 10 comprises a roll-off unit 60 with several rollers 62, 64. In the embodiment shown here, the rollers 62, 64 are rotatably mounted on the underside of the carriage 12. A deflecting roller 62 deflects the strip-shaped cover 50 from above by approximately 110° towards the guide slot 40. A discharge roller 64 deflects the strip-shaped cover 50 vertically downwards again. The discharge roller 64 also causes the cover 50 to be discharged onto the guide slot 40. For this purpose, the discharge roller 64 has a defined distance A (see figure). Figure 6 ) from the inner side 32 of the housing 30, which essentially corresponds to the thickness D of the cover 50, but is slightly larger. The cover 50 is therefore always located between the inner side 32 and the discharge roller 64. The rollers 62 and 64 partially guide the cover 50 around the traversing unit 10.

[0044] When the carriage 12 is moved up or down by the drive device 20, the band-shaped cover 50 automatically rolls over the rollers 62, 64. Since the rollers 62, 64 are arranged on the carriage 12 but are rotatable, and the lower end 54 of the cover 50 is attached to the inside 32 of the housing 30, the cover 50 is always automatically placed against the guide slot 40, depending on the position of the carriage 12 along the stroke direction H. In the embodiment shown here, this ensures that the part of the guide slot 40 located below the traversing unit 10 is always almost completely covered.

[0045] When the traversing unit 10 is moved downwards, the band-shaped cover 50 is automatically removed from the guide slot 40 due to the deflection by the rollers 62, 64. Apart from moving the carriage 12, no further action is necessary here either.

[0046] Another embodiment of a lifting and tilting device 100 is shown schematically in the Figure 6 All aspects not shown in detail are as described for the lifting and tilting device 100. Figure 2 executed. The in Figure 6 The lifting and tilting device 100 shown again features a traversing unit 10 with a carriage 12 and a pivot shaft 14, as well as a receptacle (not shown) for a waste container. The carriage 12 is moved upwards and downwards along a stroke direction H by a drive device (not shown). The lifting and tilting device 100 again has a housing 30, which accommodates the carriage 12 and protects it from environmental influences. A guide slot 40 is provided in the housing 30, through which the pivot shaft 14 passes.

[0047] Furthermore, a cover 50 is provided, which is fixedly connected to the housing 30 at both ends 52, 54. Both ends 52, 54 are connected to the housing 30 on the inner side 32. The traversing unit 10 comprises two unwinding units 60 with a total of four rollers, two deflection rollers 62, and two discharge rollers 64. The discharge rollers 64 are each arranged at a distance A from the inner side 32 of the housing 30. The distance A corresponds essentially to the thickness D of the cover 50, but is slightly greater. Starting from the upper end 52, the cover 50 extends towards the upper discharge roller 64, is deflected by approximately 110° by this roller, and then extends to the upper deflection roller 62. From there, the cover 50 extends vertically downwards to the lower deflection roller 62, where it is deflected again by approximately 110° and then extends to the lower discharge roller 64.There, the cover 50 is deflected again and then runs essentially perpendicularly towards the lower end 54. The support rollers 64, together with the fastening of the ends 52, 54, ensure that the cover 50 is placed on an edge 42 of the guide slot 40 and on an inner side 32 of the housing 30.

[0048] In the embodiment shown here, when the traversing unit 10 is moved upwards or downwards, the cover 50 is always automatically placed against the guide slot 40, depending on the position of the traversing unit 10. Wherever the traversing unit 10 moves, the cover 50 is moved away from the guide slot 40, and in the areas from which the traversing unit 10 moves away, the cover 50 is placed against the guide slot 40. No relative movement occurs between the cover 50 and the housing 30 along the vertical direction H. During placement, the cover 50 is moved by the placement roller 64 only towards or away from the guide slot 40.

[0049] The one in Figure 7 The illustrated embodiment of a lifting and tilting device 100 has a two-part cover 50. The construction of the traversing unit 10 and the housing 30 is largely identical to the Figure 6In the embodiment shown here, the traversing unit 10 has a winding unit 60 with a discharge roller 64 and a storage roller 66 for each partial cover 50a, 50b. The partial covers 50a, 50b extend from their respective ends 52, 54 towards the discharge roller 64 and are deflected there by 90°. They continue towards the storage roller, where they are wound up. The storage rollers 66 each have a torsion spring (not shown) which biases the storage roller against an unwinding movement of the cover 50. Thus, a force is always exerted that attempts to wind the partial covers 50a, 50b onto the storage roller. This keeps the partial covers 50a, 50b taut. When the carriage 12 moves up or down, the rollers 64, 66 move with the carriage 12. This causes one of the partial covers 50a, 50b to be rolled up and the other to be rolled down.As the carriage 12 moves upwards, the upper partial cover is wound onto the storage roller 66, and the lower partial cover 50a, 50b is unwound from the storage roller 66. This happens automatically due to the spring force exerted by the torsion spring. In this way, the cover 50 is automatically placed against the guide slot 40, depending on the position of the traversing unit 10. Furthermore, the cover 50 is also automatically removed from the guide slot wherever the traversing unit 10 moves. Reference symbol list

[0050] 10Traction unit 12Slide 14Swivel shaft 16Mount 20 Drive device 30 Housing 32 Inside 40 Guide slot 42 Edge 50 Cover 50a, 50b Partial cover 52 Upper end 54 Lower end 60 Unwinding unit 62 Deflection roller 64 Discharge roller 66 Storage roller 100 Lifting and tilting device 102 Rod ADistance BBreath DThickness HLifting direction

Claims

1. Lifting and tipping device for a waste collection vehicle with a traversing unit having a pivot shaft and a receptacle for a waste container, a drive device by means of which the traversing unit is lifted along a lifting direction, a housing for the traversing unit having a guide slot for the pivot shaft extending in the lifting direction, and a cover for the guide slot. characterized by the fact that The cover is automatically placed in the guide slot depending on the position of the moving unit.

2. Lifting and tilting device according to claim 1, characterized by the fact that the cover is placed on an inside of the housing and / or on an edge of the guide slot.

3. Lifting and tilting device according to one of the preceding claims, characterized by the fact that The cover is placed below and / or above the traversing unit at the guide slot.

4. Lifting and tilting device according to one of the preceding claims, characterized by the fact that the cover is one piece or multi-piece.

5. Lifting and tilting device according to one of the preceding claims, characterized by the fact that the cover is flexible and / or ribbon-shaped.

6. Lifting and tilting device according to one of the preceding claims, characterized by the fact that at least one end of the cover is fixed relative to the housing, preferably on an inside side of the housing.

7. Lifting and tilting device according to claim 6, characterized by the fact that the end is fixed by means of an adjustable bracket.

8. Lifting and tilting device according to one of the preceding claims, characterized by the fact thatthe traversing unit has at least one depositing roller which is arranged in the housing and adjacent to the guide slot as well as at an upper or a lower end of the traversing unit, wherein a section of the cover runs above or below the traversing unit and the cover is deflected by the depositing roller such that it subsequently runs between the depositing roller and the guide slot.

9. Lifting and tilting device according to claim 8, characterized by the fact that A distance A is provided between the discard roller and an inside of the housing, which essentially corresponds to a thickness D of the cover.

10. Lifting and tilting device according to one of the preceding claims, characterized by the fact that The moving unit has at least one tension roller that exerts a force on the cover, thereby keeping the cover taut in its longitudinal direction.

11. Lifting and tilting device according to one of the preceding claims, characterized by the fact thatthe traversing unit has at least one deflection roller which is arranged in the housing and at an end section of the traversing unit remote from the guide slot, wherein a section of the cover runs behind the traversing unit as seen from the guide slot and the cover is deflected by the deflection roller such that it subsequently runs above or below the traversing unit.

12. Lifting and tilting device according to one of the preceding claims, characterized by the fact that the cover is wound at one end on a storage roller and the storage roller is pre-tensioned against an unwinding movement of the cover.

13. Lifting and tilting device according to claim 12, characterized by the fact that the storage roller is located on the traversing unit.

14. Lifting and tilting device according to one of claims 8 to 13, characterized by the fact that at least one of the rollers has a larger or smaller diameter in its middle than at its axial ends.

15. Lifting and tilting device according to one of claims 8 to 14, characterized by the fact that The position of at least one of the rollers is adjustable.

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