WO2009003720A1

WO2009003720A1 - Vehicle with an awning which can be placed in an upright position

Info

Publication number: WO2009003720A1
Application number: PCT/EP2008/005505
Authority: WO
Inventors: Bernd Schneider
Original assignee: Bernd Schneider
Priority date: 2007-07-05
Filing date: 2008-07-04
Publication date: 2009-01-08
Also published as: DE102007031456A1

Abstract

The invention relates to a mobile device having a frame (14) which is provided with wheels (12) and on which at least one awning (16) and one pillar structure (18, 20) are arranged, wherein the pillar structure (18, 20) has at least two supports (18) and one cross member (20) which can be moved from a compact transportation state into an upright operating state in such a way that the awning (16) can be clamped in or to the pillar structure (18, 20).

Description

Vehicle with erectable tarpaulin

description

Field of the invention

The invention relates to a mobile device with a wheeled frame, on which at least one tarpaulin and a stator construction are arranged, wherein the stator construction has at least two supports and a cross-beam, which can be erected from a compact transport state to an operating state such that the tarpaulin can be clamped in / or on the stand construction.

State of the art

Such devices can be used, for example, for shading surfaces or as advertising or information carrier. For this purpose, the tarpaulin is clamped to the frame-like stator construction, which can be transferred for transport in a compact transport state. The size of such devices is limited both in the total area of the tarpaulin and in the maximum height of the supports, since z. B. Wind loads can often be caught only insufficient. In addition, the size of such devices is also limited by their total weight, since the for- tion for flexible transportable devices.

The German patent application DE 100 09 377 Al describes a mobile device with a wheeled frame on which a tarpaulin and a stator construction is arranged. The stand construction has columns and a crossbeam. So that the tarpaulin can be transferred from a compact transport state into an operating state which passes on advertising information, the tarpaulin is clamped to the stand construction by means of an upwardly extendable hoisting gear. Means, by their use the mobile device against external influences such as, for example, strong wind or the like. is secured, so that the stability increases and a profitable use of such a designed device is only possible, are not disclosed.

In the German patent application DE 196 26 495 Al a portable simulation cinema is described that was mounted on a transport vehicle. The projecting wall is clamped on reaching a destination on a stand construction. For better support or for greater stability of the vehicle in the operating state, the use of spindles, which are supported on the ground floor, as well as struts, which form a bond over guides with the vehicle frame, proposed. Further funds which secure the projecting wall or the stand construction itself against external influences such as, for example, strong wind or the like are not provided so that even with this mobile device a profitable use which defies the weather conditions is not guaranteed.

In the European patent application EP 1 508 472 A2 a mobile device is described, which is characterized by a high Stability is also characterized by strong wind and easy transportability. For this purpose, supports are provided on the supports, by means of which the supports can be erected in the operating state and which extend substantially perpendicular to a tarpaulin, while in the transport state, both supports and supports are folded and thus ensure a compact transport state. However, the production of a mobile device designed in this way is very expensive because of the high technical costs to be incurred and the quantity of components to be installed, so that the profitability of such a companion is not always given and appears uneconomical, especially for smaller tarpaulins. Also, the transfer from the transport to the operating state requires comparatively much time (up to about 30 minutes), which is a considerable disadvantage, since rapid assembly and disassembly (ie transfer from the transport to the operating state) is essential, for example to place the device in rapid succession in multiple locations. Furthermore, the mobile device has a high dead weight due to the amount of components to be installed. The maneuverability is limited because of the length of the mobile device and high daily maintenance costs are incurred, as on-site security personnel, etc. is needed.

task

Object of the present invention is in contrast to provide a mobile device of the type mentioned above, which is characterized by special stability even in stronger winds, easy transportability and rapid transfer from the transport to the operating state and vice versa. solution

This object is achieved by the invention with the features of the independent claim. Advantageous developments of the invention are characterized in the subclaims. The wording of all claims is hereby incorporated by reference into the content of this specification. The invention also includes all reasonable and in particular all mentioned combinations of independent and / or dependent claims.

Surprisingly, it has been found that a particularly efficient transfer of a tarpaulin from a transport to an operating state (and vice versa) can be ensured by the fact that the supports, which are part of the stator structure, represent hydraulic cylinders and thus enable the erecting of the stator construction / tarpaulin. As a result, the speed of erection of the tarpaulin can be reduced to approximately 230 seconds, which represents a considerable advantage over the mobile devices known from the prior art. Furthermore, mobile devices designed in this way are considerably less expensive to manufacture than those described above.

The subject of the invention is thus a mobile device with a frame provided with wheels, on which at least one panel and a stand construction are arranged, wherein the

Stand construction has at least two supports and a cross-beam, which can be erected from a compact transport state into an operating state such that the tarpaulin can be clamped in / or on the stator construction, wherein the supports are designed as hydraulic cylinders. Of course, more than two hydraulic cylinders can be used, for example. Three (and more) hydraulic cylinder. In a mobile device designed in this way, for example, the third hydraulic raulikzylinder be provided between the two outer hydraulic cylinder, ie placed in the middle, which would lead to an additional stability, for example. In the operating state, the hydraulic cylinders preferably run essentially parallel to the plane of the plane extending in the clamped-on state. According to the invention, it is preferably provided that the final height of the stator construction is essentially adjustable by means of the hydraulic cylinders, ie the final height of the stator construction results essentially from how far the hydraulic cylinders are extended. Preferably, the hydraulic cylinders are constructed such that any desired intermediate height, ie, any height between the transport state and (fully extended) operating state, can be adjusted. Thus, for example, smaller tarpaulins can be transferred by means of the mobile device according to the invention from a transport to an operating state, for example by the hydraulic cylinders are not fully, but only eg 50%, extended. Preferably, the hydraulic cylinders are equipped with pressure monitoring (so-called hysteresis), by means of which, in the case of possible pressure losses and lowering of one or more hydraulic cylinders, these are automatically returned to the same height. This ensures that the tarpaulin is clamped essentially exactly at right angles and free of distortions (wrinkle-free), ie by means of the substantially horizontally oriented cross-beam (to which the tarpaulin is attached and which itself is connected to the hydraulic cylinders) this is ensured. Furthermore, the invention provides that the hydraulic cylinders can not only be extended to the desired height but also locked in this amount. It is particularly advantageous if the vertical orientation of the hydraulic cylinder is adjustable, ie the orientation can be adjusted so that the tarpaulin substantially in the absolute vertical, ie at right angles, comes to the notice, so that wrinkles and the like. can be avoided. For this purpose, an adjustment device is provided according to the invention. Such an adjustment device may, for example, look like such that the hydraulic cylinder is attached at two points. At the foot, for example, by means of an adjustment with set screw and in the last third by means of a self-aligning bearing to the vertical alignment of the hydraulic cylinder to each other, even with uneven shelves, compensate or ensure.

In a particularly preferred embodiment, the hydraulic cylinders are single acting cylinders, preferably telescopic and / or stepped cylinders. According to the invention, a single-acting cylinder is understood to mean a cylinder which has only one side of the piston, which is acted upon by hydraulic fluid, so that the work, according to the invention, the starting up of the hydraulic cylinders, is carried out only in one direction. The return movement, ie according to the invention the shutdown of the hydraulic cylinder, takes place by the net mass of the cylinder and / or an external force, such as a spring and / or a winch. If only the net mass of the cylinder is used, the shutdown of the hydraulic cylinder is very slow. Of course, it is also possible to use not only single-acting cylinders but also double-acting cylinders. When using double-acting cylinders, two opposite sides of the piston would be present, so that the cylinder thereby has two active directions of movement. Double-acting cylinders could accordingly be, for example, differential cylinders, synchronizing cylinders and / or tandem cylinders. Under telescopic and / or step cylinders, a cylinder is understood according to the invention, which consists of a plurality of cylinders built into each other. The advantage of a cylinder designed in this way is that with relatively small installed long strokes can be generated. According to the invention, the telescopic and / or stepped cylinders have at least three, preferably five, sections. Furthermore, shorter, ie even more, sections of the individual cylinder strokes could also be used, with the same extendable total end length of the hydraulic cylinders. Here, however, it should be noted that additional seals at the section ends (stroke ends) would have to be provided, which could possibly lead to fluid and / or oil loss during twisting or bending of the sections / strokes. Preferably, therefore, the invisible ends of the individual sections / extensions of the hydraulic cylinders remaining in the respective cylinders are extended, so that early vertical bending of the sections / extensions is avoided. The lowermost portion of the hydraulic cylinder is, for example, rigidly or variably fixed to the frame, while the other sections are installed in this first section and are extended as needed. In a particularly preferred embodiment, the first portion, ie the portion which is mounted, for example. Rigid or variable to the frame, a height of between 5% and 25%, preferably between 10% and 25%, of the total height of the hydraulic cylinder in the operating state , A large area of the nozzle is thus retracted in the transport state. This has the advantage that both a possible bending of the hydraulic cylinder is prevented as well as in the transport state, a certain ride height, which is usually dictated by law, can be met. Thus, for example, for the Federal Republic of Germany a maximum travel height of 4 m on the roads with retracted hydraulic cylinders, ie in the transport state, can be maintained.

In a further preferred embodiment, the frame of the mobile device has at least one hydraulic pump and at least one fluid tank, preferably an oil tank. In the Hydraulics is the power transfer by means of a fluid, usually a special mineral oil, but increasingly by environmentally friendly fluids such as water or special esters or glycols. The transferred power essentially results from the factors pressure and fluid flow. The power, energy and / or force / torque transmission takes place from the drive machine (the pump) to the work machine (piston or hydraulic motor), the performance parameters being adapted to the requirements of the working machine. Erfindugsgemäß is preferably hereby the

Hydraulic pump at least one quantity distributor, preferably an oil quantity distributor, assigned, by means of which the simultaneous startup of the hydraulic cylinder is ensured from a transport state to an operating state. The use of a quantity distributor has the advantage that by means of regulation of the fluid or oil quantity distribution of the at least two hydraulic cylinders, a synchronization, ie a substantially synchronous startup, of the cylinder can be ensured, which protects the cylinders and helps to prevent damage and which continues to guarantee in that the transverse beam preferably mounted in an articulated manner on the hydraulic cylinders does not bend when the joint stop should be reached once. Furthermore, the tarpaulin (as well as any information carriers such as advertising banners, posters, etc. attached thereto) can hereby be raised substantially at right angles, which can produce a further advertising effectiveness due to the moving motif. As mentioned before, a pressure switch (so-called hysteresis) is preferably provided against a discharge of the hydraulic cylinder or cylinders due to pressure or oil loss, which is preferably installed before the intake of the cylinder (s). This hysteresis ensures that the cylinders can be kept substantially parallel to each other. In this way, it is further ensured that any vertical guy cables that may be used, which can run between outer ends of the hydraulic cylinder and tarpaulin are always tense. Furthermore, an optionally installed hysteresis ensures that the cylinders can not bend in their vertical orientation and the tarpaulin and possibly on or on her applied information carrier such as banner ads and the like. always sitting right-angled and wrinkle-free in the notice board. Furthermore, the invention provides that the cross-beam can be moved by means of the hydraulic cylinder from the transport state into the operating state.

In a further preferred embodiment, the cross-beam is preferably at the ends of the hydraulic cylinders remote from the frame, i. when using e.g. Telescopic and / or stepped cylinder at the upper portion of the cylinder, arranged. Preferably, the cross-beam is pivotally connected to the hydraulic cylinder, for example by means of hinge pins and the like.

In a particularly preferred embodiment, at least one safety rope is attached to the crossbeam. This safety cable is preferably attached to the crosspiece in a substantially non-detachable manner. Essentially unsolvable in this context means that the safety rope is attached so that it remains on the crossbeam even in strong winds. This can be ensured, for example, that the safety rope is carried out by eyelets and the like attached to the crosspiece (and, if necessary, hooked where necessary) and / or also by means of strong fastening forces of restraining fastening means (snap hooks and the like). The safety rope attached to the crossbeam is intended in particular to ensure that in the case of (suddenly occurring) strong winds in which the connection between the tarpaulin and guide cable and / or frame and / or lifting cylinder is lost, ie the two vertical connections of the tarpaulin and the lower one hori- zontal connection of the tarpaulin, which by means of suitable fasteners such as the above-mentioned or example. By rubber ropes on the - possibly circulating - support or guide cable (this may be made of steel) or attached to eyelets in the lower area, demolishes, the upper horizontal safety rope holding the tarpaulin on the crossbeam. Thus, a "flagging out" (flag effect) of the tarpaulin is guaranteed and the wind energy is reduced and accidents avoided.

In a further preferred embodiment, the frame has at least one winch. As already explained, in the case of single-acting cylinders, the return movement takes place through the intrinsic mass (the hydraulic cylinder) and / or an external force (spring or winch). In the present invention, this object is achieved by the attached to the frame winch. While the start-up of the hydraulic cylinders can be regulated by means of the amount of fluid provided, the hydraulic cylinders are shut down, inter alia by means of the winch, ie - in addition to the net mass of the cylinders - the winch supports this movement. The winch used is preferably a hydraulic winch, but mechanical winches are also included according to the invention. Furthermore, the cable winch preferably has a cable prestress, in particular an adjustable cable pretension. By means of this adjustable cable prestressing, finally, the shutdown, ie the speed at which the hydraulic cylinders are retracted and the tensioning of the tarpaulin are controlled, ie the belly of the tarpaulin (sail effect) is limited to such an extent that bending of the hydraulic cylinders and their sections / extensions is avoided during the transfer from transport to operating state and back again. The hydraulic cylinders are thus preferably made with the aid of the winch or rope pretension the operating state, ie the extended state, in the transport state, ie the retracted state, proceed, as, as already stated, a retraction of the lifting cylinder without load on the outer cylinder ends (outer sections of the cylinder) proceeds very slowly vonstatten.

In a further embodiment of the invention, the winch is a mechanical winch, preferably a winch, which is driven by a spring force, particularly preferably by at least one spring motor. By raising the hydraulic cylinder of the spring motor is tensioned and can support the return movement of the hydraulic cylinder when shutting down. The winch may also have a rope bias. Depending on the characteristic of the spring motor, the tension of the rope can be adapted to the extended height of the hydraulic cylinder.

In a further preferred embodiment, the frame has at least one carrying or guiding cable. Preferably, the stand construction is circulated by the support or guide cable. Preferably, the tarpaulin is attached to this support or guide cable by means of suitable fastening means. The support or guide cable can be attached directly to the crossbeam or alternatively extend inside the crossbeam and there by means of eg rollers or rails such as pulleys and the like. be redirected. If the guide cable is not attached directly to the crossbeam, ie, runs within the crossbeam, according to the invention, as described, a safety rope is provided, which is attached to the crossbeam and to which in turn the tarpaulin is attached. Furthermore, a mobile device is provided according to the invention, which has no circumferential support or guide cable. In such a trained mobile device each hydraulic cylinder is assigned at least one support or guide cable, which can be attached to and / or in the crossbeam. These are then assigned at least one winch, ie when using two support or guide cables, the mobile device according to the invention also has at least two winches of the type mentioned above.

In a further preferred embodiment, the at least one tarpaulin is connected by means of suitable fastening means to the support or guide cable and / or the safety rope and / or the cross-beam and / or the frame. Suitable fasteners may include, for example, straps (e.g., straps), hooks (e.g., snap hooks), and the like. be and are known in the art. In this context, it is important to note that the fasteners should be selected such that the tarpaulin remains connected to the cross-beam and / or safety bar attached to the cross-beam, even under very high wind and other (mechanical) loads, to avoid accidents to avoid falling tarpaulins, while preferably the fastening means at the ends of the tarpaulin, the direction hydraulic cylinder and frame should be chosen such that in strong winds and other (mechanical) loads they dissolve, so that the tarpaulin in such cases only on the cross-beam and / or the safety rope hangs and flags out there.

In a further preferred embodiment, the tarpaulin is pulled up together with the crossbeam, wherein the shear forces acting in the plane of the tarpaulin are substantially absorbed by the tarpaulin. The raising of the tarpaulin takes place, as already described, essentially by means of the hydraulic cylinders. The tarpaulin is part of the statics of the mobile device, so that additional stiffening elements or the like. can be waived. As a result, the total weight of the mobile device can be significantly reduced.

Preferably, the tarpaulin is substantially opaque, so that the mobile device can be used for shading large areas. At the same time a use of the mobile device as a mobile screen for a cinema is possible.

An information carrier can be provided on at least one side of the tarpaulin. Furthermore, an information carrier can be printed on the tarpaulin as well as another printed information carrier such as. A banner, advertising or the like. Are hung in front of the already stretched tarpaulin. It is also provided according to the invention that, for example, information carriers printed on both sides, such as advertising tarpaulins and the like, are used. Preferably, however, an information carrier is provided on both sides of the tarpaulin. Such an information carrier can, for example, be an imprint or a coloring of the tarpaulin itself or another tarpaulin, a grid or the like. Such a separate information carrier can be hung, for example, as an advertising printed grid together with the first tarpaulin on the crossbar and out a compressed transport state are transferred to the operating state in which the information carrier is clamped together with the first tarpaulin in the stator construction. If necessary, the information carrier or the tarpaulin itself by headlamps, which are provided, for example. On the crossbeam and / or the frame, are illuminated. Furthermore, as set forth, the invention encompasses the simultaneous use of two or more information carriers, such as, for example, tarpaulins, posters or the like, which are mounted on self-propelled or non-self-propelled mobile devices and used simultaneously or alternately. In general, the amount of opened tarpaulins or the information carrier such as banner ads and the like. limited only by the load of the hydraulic cylinder or the cross-beam.

According to a preferred embodiment of the invention, at least one ballast is provided on and / or on the frame. Preferably, the ballasting by means of concrete and / or steel. Ballasting may be required in order to prevent the mobile device from tipping over or slipping, for example. Here, e.g. Concrete blocks are used and / or e.g. Ballast tanks are provided, which are filled with appropriate ballast. Preferably, the invention provides that the ballast is reversibly attached to the mobile device, i. can be removed if necessary. This has the advantage that the dead weight of the mobile device can be significantly reduced (eg Aufstellgewicht the wheeled device 16 tons and after removal of the ballast, for example, only 5 tons), which the transport and use in sensitive places, eg. In parks or sidewalk surfaces. Furthermore, the reduction of the transport weight by decreasing the ballast can be used such that e.g. can be driven over small bridges with low loads, or historic streets and squares.

In a further preferred embodiment of the invention, the tarpaulin is secured by means of at least one transverse and / or cross bracing against strong wind forces. Preferably, in this case the transverse and / or Kreuzabspannung is attached to the frame and the crossbeam, for example. Hooked. This transverse and / or Kreuzabspannung can optionally be readjusted and / or locked, depending on the height of the extended cylinder and the forces acting. The invention further comprises a mobile device, in which the securing of the hydraulic cylinder by means of at least four guy ropes, ie at least two guy ropes (front and back) are provided for each existing Hydraulikzylin-. These guy ropes can also preferably be readjusted and / or locked, ie the (vertical) guy ropes are adjustable to the respective height of the hydraulic cylinders to prevent bending of the hydraulic cylinders or their individual sections and / or push-out. The guy ropes can, for example, attached to the frame and the crossbeam, for example. Hooked, be.

The wheeled frame of the mobile device can be either a self-propelled device, for example. A truck or the like. be a trailer or the like .. Preferably, the wheeled frame is a semi-trailer. Thus, for example, according to the invention, it is provided that the frame provided with wheels is a swap body, wherein each interchangeable platform, in particular those according to DIN EN

283/284 and according to the recommendations of the Federal Association of German Long-Distance Freight Freight Services (BDF chassis or BDF trailers), if the mobile device according to the invention is a non-self-propelled, mobile device such as a trailer (semitrailer), Wechselplitschen and the like., Can be transported to or to different locations with only one vehicle (truck), for example, several of these non-self-propelled mobile devices to offer, for example, certain media planners in the advertising industry, a cost-effective solution, so that certain forms of active Furthermore, the frame provided with wheels can be fixedly mounted on a vehicle, eg on a lorry, a trailer, a swap body, a semitrailer Lauflieger etc .. According to the invention it is further provided that the mobile device, be it a self-propelled or a non-self-propelled device, with or alternatively without further supports such as. Hydraulic punches and the like. is equipped. Insofar as the mobile device is equipped with further supports, it is also possible to use it in sensitive locations such as parks or pavement areas, since the surface of these sensitive places of use is hardly stressed due to the reduced footprint (for example 4 × 20 cm ² ).

The height of the hydraulic cylinder can be at least 5 m, preferably at least 8.5 m, in particular at least 15 m in the operating state. The tarpaulin may have an area of at least 20 m ² , preferably at least 50 m ² , in particular at least 100 m ² .

In the tarpaulin several may be incorporated between the at least two hydraulic cylinders and / or the at least one support or guide cable and / or the at least one safety rope and / or the crossbeam and / or the frame extending tension straps or the compound can be generated by means of suitable rubber ropes , The tarpaulin can be, for example, circumferentially roasted so that the rubber parts can be pulled through and attached around or on the support or guide cable or the safety rope. Furthermore, the tarpaulin may be glued, welded and / or sewn to a net of drawstrings. For example. the tension straps are arranged in an approximately rectangular grid network with a distance between the tension straps between 0.25 m and 1 m, in particular 0.6 m. If rubber cables are used, for example, the eyelets in an approximately rectangular grid or a solid canvas with a distance between the rubber cords between 0.1 m and 0.6 m, in particular about 0.3 m, arranged. In order to absorb even large wind loads men, the tension straps can have a tensile load of more than 10 N to about 140 N, preferably 100 N, while the rubber ropes can represent commercial rubber ropes. The tarpaulin can not only carry their own weight in this way, but also accommodate additional forces acting on the stator structure forces, so that the tarpaulin can be a part of the statics of the mobile device.

Further details and features will become apparent from the following description of preferred embodiments

Connection with the subclaims. In this case, the respective features can be implemented on their own or in combination with one another. The possibilities to solve the problem are not limited to the embodiments. For example, area information always includes all - not mentioned - intermediate values and all imaginable subintervals.

The embodiments are shown schematically in the figures. The same reference numerals in the individual figures denote identical or functionally identical elements or elements that correspond to one another in terms of their functions. In detail shows:

Figure 1 is a schematic side view of the mobile device according to the invention in its transport state. Fig. 2 is a rear view and a side view of the mobile device in the operating state;

3 is a rear view and a side view of the mobile device in both its transport and operating state. 4 shows a rear view and a side view of the mobile device both in its transport and operating state with dimensions; Fig. 5 is a side view of an embodiment of the mobile

Device in operating condition with a spring motor; and FIG. 6 is a side view of an embodiment of the mobile

Device in operating condition with a spring motor.

The mobile device shown in the figures has a semi-trailer (10), which forms a frame (12) with wheels (14). On the frame of the semitrailer (10) two supports are arranged as a hydraulic cylinder (18), which together with a cross-beam (20) form a stator construction for mounting a tarpaulin (16).

As FIGS. 2 and 3 show, the hydraulic cylinders (18) are subdivided into a plurality of sections (18a, 18b, 18c) of interconnected sections. Between the upper portions of the hydraulic cylinder (18c), the cross-beam (20) articulated, for example. By means of a hinge pin stored. The lower portions of the hydraulic cylinders (18a) are connected to the frame (12). On this basis, the hydraulic cylinders (18) can be converted from the transport state shown in FIGS. 1 and 3 into the operating state of the mobile device shown in FIGS. 2 and 3. For this purpose, the hydraulic cylinders (18) are extended, so that the other sections (18b, 18c) raise vertically.

The frame (12) is associated with a cable system, via which the tarpaulin (16) is suspended from at least one support or guide cable (28). The support or guide cable (28) is in this case by means of deflection rollers (40) which are arranged in the cross-beam (20) or the frame (12), guided to a arranged on the frame winch (22). The winch (22) is driven by a motor. Furthermore, the frame (12) is associated with a hydraulic pump (24) and a fluid / oil tank (26), by means of which the hydraulic cylinders (18) are driven. On the frame (12), a setting device (38) for the vertical alignment of the hydraulic cylinder (18) is further provided. The cross-beam (20) has on its side facing the frame (12) a safety rope (30) on which the tarpaulin

(16) is suspended. Further, the tarpaulin (16) is attached to the frame (12) and the support (guide) rope (28). When pulling up the cross-beam (20) by the hydraulic cylinders (18), consequently, the tarpaulin (16) suspended from the cross-beam (20) is also pulled up and clamped by means of the winch (22). The tarpaulin (16) can additionally be connected to the frame (12) at its lower edge, for example by means of hooks and rubber cords.

Furthermore, the frame (12) at least one ballast (32), by means of which the mobile device is secured against tipping over. In strong winds, the tarpaulin (16) is secured by transverse and / or Kreuzabspannungen (34) which can be attached to the cross-beam (20) and the frame (12). In the operating state, the hydraulic cylinders (18) by guy ropes (36) secured, which can also be attached to the cross-beam (20) and the frame (12). The frame (12) also has supports (42). These may e.g. Hydraulic stamp (42), with which the mobile device can be supported on a substrate and is thus secured against a possible tipping over.

The polyester, for example, tarpaulin (16) may be printed as an information carrier or be provided in another suitable manner with a label or pictures. Alternatively, it is possible that on one or both sides of the tarpaulin (16) separate information carrier are arranged, which together with the tarpaulin (16) with the cross-beam (20) to the Hydraulic cylinders (18) are clamped. Such separate information carriers can be, for example, another tarpaulin or a grid.

In FIGS. 5 and 6, in contrast to FIG. 2, a winch (22) which can be driven by a spring motor (44) is used. Since a spring motor in contrast to a hydraulic drive has its own elasticity, for example, the clamping force of the support or guide cable in addition to the increasing elongation of the spring motor with the elongation of the supporting or

Guiding cable (28) are controlled, for example, when the hydraulic cylinders (18) are moved out to the last section (18c). In addition, the spring motor can better compensate for slight fluctuations in the cable tension.

In the embodiments of FIGS. 5 and 6, in addition to the labeled features, further features, for example features shown in FIGS. 1 to 4, may also be realized, for example cross straps (34) and / or ballast (32). In Figure 5, the support or guide rope is mounted circumferentially according to Figure 2.

In the embodiment of FIG. 6, each hydraulic cylinder (18) is assigned a carrying or guiding cable (28), which is preferably fastened to the crosspiece (20). Therefore, the frame (12) preferably includes a winch with two-part winding drum (22), wherein the winch is driven by one or more spring motors (44). It can also be used two winches. The support or guide cable can also be arranged circumferentially.

In the figures, no side walls of the semi-trailer (10) are shown. These may possibly be present and, for example, be lacquered and be folded down in the operating state to the vicinity of the substrate. In this way, the overall impression of a picture on a pedestal arises in the operating state.

reference numeral

Semi-trailer Frame Wheel Tarpaulin Hydraulic cylinder a Lower section of the hydraulic cylinder B Middle section of the hydraulic cylinder C Upper section of the hydraulic cylinder Cross-beam Winch Hydraulic pump Fluid tank / oil tank Carrier rope / guide rope Safety rope Ballasting Cross-bracing / cross-bracing Tie-down rope Adjustment pulley Idler pulley Supports Spring motor

Claims

claims

1. A mobile device having a frame (14) provided with wheels (12) on which at least one tarpaulin (16) and a stud structure (18, 20) are arranged, the stud construction (18, 20) comprising at least two studs (14). 18) and a cross-beam (20), which can be erected from a compact transport state into an operating state, characterized in that the supports (18) are designed as hydraulic cylinders (20) and the tarpaulin (16) in the stator construction (18 , 20) can be clamped.

2. Mobile device according to claim 1, characterized in that the hydraulic cylinders (18) extend in the operating state substantially parallel to the plane in the clamped state extending plane (16).

3. Mobile device according to claim 1 or 2, characterized in that the final height of the stator construction (18, 20) in

Essentially by means of the hydraulic cylinder is adjustable.

4. Mobile device according to one of the preceding claims, characterized in that the vertical orientation of the hydraulic cylinder (18) is adjustable.

5. Mobile device according to one of the preceding claims, characterized in that the hydraulic cylinder (18) single-acting cylinder, preferably telescopic and / or Stufenzylin- the, are.

6. Mobile device according to claim 5, characterized in that the telescopic and / or step cylinders (18) at least three, preferably five, portions (18a, 18b, 18c).

7. Mobile device according to claim 6, characterized in that the first portion (18 a) with the frame (14) is connected and has a height between 5 and 25% of the total height of the hydraulic cylinder (18) in the operating state.

8. Mobile device according to one of the preceding claims, characterized in that the frame (14) has at least one hydraulic pump (24) and at least one fluid tank (26), preferably an oil tank.

9. Mobile device according to claim 8, characterized in that the hydraulic pump (24) at least one quantity distributor, preferably an oil quantity distributor, assigned, by means of which the simultaneous startup of the hydraulic cylinder (18) is ensured from the transport state to the operating state.

10. Mobile device according to one of the preceding claims, characterized in that the cross-beam (20) by means of

Hydraulic cylinder (18) from the transport state in the operating state is movable.

11. Mobile device according to claim 11, characterized marked, that the cross-beam (20) at the of the frame (14) remote ends of the hydraulic cylinder (18) is arranged.

12. Mobile device according to one of claims 10 or 11, characterized in that the cross-beam (20) is pivotally connected to the hydraulic cylinder (18).

13. Mobile device according to one of claims 10 to 12, characterized in that on the cross-beam (20) at least a safety rope (30) is mounted.

14. Mobile device according to claim 13, characterized in that the safety rope (30) is mounted substantially non-detachably on the cross-beam (20).

15. Mobile device according to one of the preceding claims, characterized in that the frame (14) has at least one winch (22).

16. Mobile device according to claim 15, characterized in that the winch (22) of at least one spring motor

(44) is driven.

17. Mobile device claim 16, characterized in that the cable winch (22) has a cable prestressing.

18. Mobile device according to claim 17, characterized in that the cable prestressing is adjustable.

19. Mobile device according to one of claims 15 to 18, characterized in that the hydraulic cylinders (18) by means of the winch (22) from the operating state in the transport state are movable.

20. Mobile device according to one of the preceding claims, characterized in that the frame (14) has at least one support or guide cable (28).

21. Mobile device according to claim 20, characterized in that the support or guide cable (28), the stator structure (18, 20) rotates.

22. Mobile device according to one of the preceding claims, characterized in that the at least one tarpaulin (16) by means of suitable fastening means with the support or guide cable (28) and / or the safety rope (30) and / or the cross-beam (20). and / or the frame (12) is connected.

23. Mobile device according to claim 22, characterized in that the tarpaulin (16) is pulled up together with the crossbeam (20), wherein the in the plane of the tarpaulin (16) acting- thrust forces substantially from the tarpaulin (16) become .

24. Mobile device according to claim 22 or 23, characterized in that the tarpaulin (16) is substantially opaque.

25. Mobile device according to one of claims 22 to 24, characterized in that on at least one side of the tarpaulin (16) an information carrier is provided.

26. Mobile device according to claim 25, characterized in that the information carrier is a tarpaulin or a grid.

27. Mobile device according to one of the preceding claims, characterized in that on and / or on the frame (12) at least one ballast (32) is provided.

28. Mobile device according to claim 27, characterized marked, that the ballasting (32) by means of concrete and / or steel.

29. Mobile device according to one of the preceding claims, characterized in that at strong wind forces securing the tarpaulin (16) by means of at least one transverse and / or Kreuzabspannung (34).

30. Mobile device according to one of the preceding claims, characterized in that the securing of the hydraulic cylinder (18) by means of at least four guy ropes (36).

31. Mobile device according to one of the preceding claims, characterized in that the wheels (14) provided with frame (12) is a truck trailer, in particular a semi-trailer (10).

32. Mobile device according to one of the preceding claims, characterized in that the wheels (14) provided with frame (12) is fixedly mounted on a vehicle.

33. Mobile device according to one of the preceding claims, characterized in that the tarpaulin (16) has an area of at least 20 m ² , preferably at least 50 m ² , in particular at least 100 m ² .