ES2261308T3 - INFORMATION DEVICE. - Google Patents

Abstract

A lorry (2) advertising display has a flexible sheet (6) wound between housed (5) rollers so as to be held tight and driven by electric motors to allow the display of different information zones.

Description

Information device

This invention is a device of information that can be attached to a truck and that has a flexible sheet, sail canvas, a flexible canvas or something similar that It contains information.

In recent years, a permanent has been passed transfer of freight transport from the railroad to the road, and this trend, which continues to continue, causes Lots of trucks are on our roads. These trucks are they have always been used as means of advertising and of information for printing messages of each type for example on superstructures, canvas decks, etc. This procedure, however, it is no longer subject to today. Because for a side the transnational product transport increases as consequence of the EU merging more and more, and for the existence of many languages in Europe the message of publicity or information it is not very valuable, for example on a canvas cover of a Dutch truck, because only few Germans can understand the Dutch language

Therefore, you have to create a possibility to be able to adapt very simply the advertising messages or other information on trucks of international transport of merchandise in the language of the corresponding country. For businesses large transport would also be desirable to be able to give a customer at least part of the advertising area on the trucks of the transport company so that it can be done simultaneously propaganda for transported merchandise.

Document GB2326965 describes the level of newer technique and contains all the characteristics of the term generic of claim 1.

Here, also the already known order of the brochure of the European patent application 473 794 little has been shown practicable. There, two channel-shaped loops are formed on two sides Opposites of an information sheet, in which you can enter a bar or something similar, which simplifies the fixing of the sheet of information to the corresponding vehicle. To change the information, however, the entire sheet must be replaced information, for which a multitude of clamping devices, the blade must be undone and replaced used, and then these fasteners must be reinstalled. For that, a lot of time and staff is necessary, because the cover extends over the entire length of the load surface and the introduced bars have great weight for their length, which a individual person can not control. If you have to change that advertising sheet during the trip, at least two people are necessary, and thus always a second driver must accompany.

This results in the problem that has led to the invention of creating an information device with which you can change the information presented by an individual person with few maneuvers.

The solution to this problem is that it is intertwined the information sheet (plastic sheet, sail canvas, de canvas, blind fabric, etc.) around two drums of coil, which have distance and are almost parallel to each other, and which joins the blade resistant to rotation with the shirt of the drums Additionally, the coil drums are adjustable by turn so that the sheet can be laid stiffly and different information sheet areas in the area between the drums of coil are visible.

The invention is defined by claim. one.

Unlike the current state of the art according to the brochure of the European patent application 473 794, no the entire sheet has to be disassembled to change the information of advertising, but only the drums of coil, so that the advertising used and no longer current is rolled over together with the corresponding sector of the sheet on a drum, while at the same time unrolling the opposite drum another sheet sector, which contains the desired information. Here for that only one adjustment per spin of the drums is necessary to change the information, what can be done or by hand for a crank or automatically by an electric motor. In the last case, even an adjustment during the trip is possible. That new functionality is possible by the spin-resistant coupling of the information sheet to the coil drums, so that by the drive of one of the drums is still rolling the sheet information. The twist-resistant coupling to the shirt of the coil drum can be done in different ways, which are explained below. The decisive thing, however, is that unlike the order according to the brochure of the European patent application 473 794, a relative rotation between the drum sleeve and the sheet of Information is no longer possible. At the same time, it must be guaranteed that the length of the information sheet in its extension perpendicular to the coil axes is at least twice the distance between the two coil drums, so that by a corresponding turn adjustment of them can be rewound totally the sheet sector with the printing no longer current and it I can replace it with an unwound sector of the other drum. By the principle according to the invention, the different sectors of information on the sheet can be printed or equipped with another way with the corresponding information independently between yes. In particular, colors reflecting the light, so that during the night for example information illuminated by the headlight of the following cars appear clearly visible. Naturally they can be done Parts of the information also by stickers. As explained more below, the visible part of the information sheet can be preserve by a transparent sheet of dirt and silt, and thus the coil mechanism works surely also for a while very bad. You can also always clean the transparent cover by a jet of water, a brush or something similar, so that the Corresponding propaganda appears clearly visible.

It has proved advantageous that they have been installed the drum reels to the truck in the area of a rear and / or lateral outer surface of the cargo space or a cover of loading surface Here, it is more advisable to use the rear outer surface of the cargo space, because there traffic Next you can see the printed advertising very well. But nevertheless, you can by the way use the side walls of a truck superstructure too, where there is also a larger surface for advertising or information. The device of information according to the invention is preferably a Modification element, which can be used in almost all desired places, for example also in truck trailers, in the back of buses, and also in trams or others vehicles for the transport of goods or people.

If the coil drums are located in the sector of two opposite edges of the corresponding surface outside the cargo space or a surface cover of load, you can use the entire height or width of the superstructure of the truck as billboard. The invention recommends install the coil drums so that the cross section of the vehicle, so that they are not influenced unfavorably width or height of the passage and the resistance of the air. You can achieve that for example by fixing the drums of coil on both sides of the rear hatch of the vehicle so that do not protrude to the sides. If the vehicles have two cargo space doors that open like a gate, are they can fix the two drums to these doors, displaced a little inside compared to the hinges, so that you can Freely open the cargo space doors. If the truck It has an awning that covers the loading surface, it can be installed a coil drum at the top edge of that awning and a drum of coil at or below the bottom edge of the load surface, of so that you can p. and. put the upper coil drum by the edge of the awning to the upper surface of the awning to open the awning on the back side. It is also possible to put the drums of coil inside the cargo space if there is a possibility of step of the leaf to the outside.

The information sheet preferably has an extended form, whose side ratio is greater than 2: 1, preferably greater than 5: 1, in particular greater than 10: 1. Dice that a surface used for propaganda should have almost always a square format, can be stored using the recommended dimensions at least two, preferably five, in particular ten or more information boxes and submit them to the advertising.

The edges of the information sheet can be located on two U-shaped rails, which are anchored to the truck. These rails serve to keep the edges of the sheet of information that are not attached to the coil drums nearby of the basic area of the truck located below, so that the edges are not they bend outside by relative wind and then form a sail-shaped surface that could capture relative wind and increase air resistance.

There are other advantages if installed over the sector a transparent cover visible from the information sheet. How already explained above, this transparent cover serves to preserve the dirt information sheet and during silt winter, to protect the mechanism of the coil drums from fouling or damage.

The invention provides that the transparent cover It consists of a sheet or a board. The leaf, however, has advantageously less weight and is more comfortably manageable, while that the board is more stable, so that the information sheet located below does not rise even by wind suction relative although the vehicle travels very fast on highways. By that, the decision between sheet and board depends on the situation.

The invention recommends joining the cover transparent along two slats on the edge side with the vehicle superstructure. Here, anchor the transparent cover it is possible without limiting the freedom of movement of the sheet information. The slats to the edges, which are used to fix, they can be identical with the guide rails for the sheet Information mentioned above. As on the other hand the cover transparent, these slats and the basic area of the superstructure of the truck located below form a bag that guides the sheet of information, lanes with a section can also be used Rectangular transverse as fixing slats

This object of the invention can be continue so that the edge side junction between the cover and the vehicle superstructure is disconnectable at least at along an edge, p. and. by push buttons or something similar. This joining technique is particularly recommended if a transparent sheet cover, because it can be disconnected for few maneuvers to create access to the cargo surface from the truck.

There are similar advantages if the information sheet It has narrow elements on its sides to attach to the drums coil, in particular pressure buttons, hook elements, adhesive slats or something similar. These elements should be built so that you can always disconnect not destructively the information sheet of the corresponding drum coil and also connect it back to it first to create a temporary access to the cargo surface and second to be able to replace or change the sheet, for example to modify the applied information or add other information or something Similary.

Couples located on the interior surfaces of coil drum shirts correspond to the elements of Fixing the information sheet. These fasteners are fixed immovably in front of the corresponding coil drum and that is why they make possible a slip-free transfer of the torque of coil reels to the information sheet. The fasteners, for example pressure buttons, can be in a groove or groove and parallel cavity to the shaft, which is submerged in the barrel of the drum, so that these elements do not undermine the winding qualities of the corresponding drum.

A type of alternative construction to that, where the information sheet is continuous and only stiffly laid around coil reels, however, you need a torque transfer only driven by friction, which  it can cause not only that the information sheet is shorter, but also that there are problems in adjusting exactly one sector of information.

The coil drums may have washers of front side guide. These guide washers serve to ensure a perfect coil procedure, also in case the information sheet p. and. have removed the rails in the form of Or planned for that.

Preferably, the coil drums are rotatably mounted to a fixture. Preferably, the coil drums in the area of shaft or extension dies front axle shaft, where ball bearings have been Proven for its long life.

If the drum fixing has an extension corresponding to the length of the drum, with two stirrups of clamping in the area of its two extreme sides to wrap the coil drums on its front sides, the jacket sector can move freely along with possibly existing washers front side mounting versus vehicle mounted mounting, so that any desired rotation setting is possible.

In addition, the invention provides that the fixation of the drum has its outer side opposite the coil drum and / or a its extreme elements to hold it to an outer surface of the cargo space or a cargo surface cover, e.g. and. flanges with eyes to pass fixing straps, screws fixing or something similar. These fasteners must be able to withstand the tensile forces of the laid information sheet and transfer them to the truck superstructure. Besides, the fixation should be without vibrations to avoid that in case of irregularities of the track the information sheet clash against the vehicle superstructure, that is to avoid damage. If the Vehicle superstructure is boxed, it is recommended screw the drum fixation stably and without vibrations to the superstructure; if the loading surfaces are covered with awnings, it should at least make a very strong bond with the metal box that supports the awning; in this case, install damping elements p. and. rubber or something similar prevents damage for crashes caused by irregularities of the road.

A box attached to the drum fixing, which Wrap the corresponding coil drum, protect the corresponding coil drum, its fixing, the device drive and climate influence control device and also of occasional mechanical impacts. For this last reason, It is advisable to use a sheet metal, which is much more Tough than a plastic case.

The box may have a groove along its shirt so that the information sheet can pass. This slot it should be as narrow as possible to be able to almost exclude the water jet penetration or something similar. Its length is than be a little larger than the width of the information sheet.

To make possible an access to the drum of coil, a part of the box can be foldable, in particular a area of your shirt circumference. To open the box is possible to undo the pressure buttons on the corresponding side end of the blade, which are accessible after it has been completely unwound the information sheet of a drum coil, from your partners to the drum shirt, so that it You can now roll the blade completely to the other drum. If at least one of the coil drums is disconnectedly attached to its fixing, you can disassemble the fully wound drum from its fixing and replace it with another. Here it is advantageous if the part of folding box reaches the slot so that you carry the blade uncomfortably through the slot is not necessary. After riding a new drum, you can roll your information sheet until the another drum and fix it to him when the cash sectors still they are open, and only after the two covers of box, by forming the slots necessary for the sheet to Information can pass without friction.

A coupling or brake mechanism coupled with one of the coil drums, which prevents in each position (from fit) that the information sheet unwind involuntarily, It offers other advantages. Therefore, there is the possibility of preventing the information sheet undesirably unwound for example by the relative wind influence. The most sincere effect is achieved by a fitting mechanism, which does not allow the opposite of a brake mechanism that the information sheet is unwound even if the tensile forces are very large. One such mechanism of lace can be formed with a cog gear wheel saw, which fits into a spring-loaded nail.

In order to develop the information sheet, the coupling or brake mechanism should be disconnectable by a manual control element and / or by an actuator. So there is a possibility of acting definitively on the fitting mechanism or  brake to develop the first drum information sheet coil, whose coupling or brake mechanism is disconnected, by actuating the other coil drum in the direction of wind up Preferably, such engagement or brake mechanisms are they should be fixed to both coil drums. If both drums are have interlocked, the information sheet cannot move to any address. A brake mechanism can also be used as a drive motor stopped or fixed, if it has friction enough or if it is coupled to a gear that transmits strongly and that is why self-locking.

To roll the information sheet, the coil drums have a drive mechanism and / or are They can attach the drums to this mechanism. Preferably, a such a drive mechanism should only be able to operate the corresponding coil drum in the direction of rotation that coil the information sheet to that drum. The unwind procedure it is always done by the transfer of tensile stress of the other coil drum by the information sheet.

The first possibility to make a drum drive is that the drum shafts are output or a part of the gear coupled to these and having a head of connection, p. and. in the form of a square or something similar, in which it  a hand crank can be fitted for the manual control of the coil. Preferably, the movement has to be changed rotating here so that the connecting head and that's why a crank driveway on it can be rotated around an axis horizontal and perpendicular to the visible information surface. This measurement allows the control of the coil mechanism without any auxiliary energy However, to change the sector of visible information much less work is needed than if Use the current state of the art. It is enough that the driver goes during a break at a resting place at corresponding site of your truck with a crank, undo the Reel mechanism of coil drum to be wound, fit the crank on the other coil drum and turn the crank until the information sector used has been replaced by the desired one. Then, the crank is disassembled and lent attention that both mechanisms of fit are active, and the Driver can now continue the trip.

Each of the two drum shafts is coupled to a drive motor, especially to an electric motor. So, a adjustment of the information sheet is possible even during the trip, if a mechanism is planned to stop the corresponding drive motor in a certain position of the blade information. As an electric motor, all types of use can be used current, especially, however, current motors continuous or stepper motors with a low nominal voltage, because the required power of the engines can be relatively little. A reduction gear can also be used, because High coil speed is not necessary. Engine power Drive can be from case to case between 100 and 500 watts.

The invention recommends building the engine of elongated and slim drive and mount it inside the coil drum Such drives, which are sometimes called also gross engines, are designed so that they can be located inside a cavity in the coil drum. It can use the rotor, which for this type of engine is located at outside, also directly as coil drum, if they exist the corresponding fixing possibilities for the sheet information. This type of engine has the advantage that to the extremes of the additional front sides and too bulky facilities are not necessary, and so you can minimize the total volume of the box.

You can take the necessary energy to operate the electric motor of the vehicle power system. A DC motor with a nominal voltage of 12 or 24 you can take your motive energy directly from the system vehicle power If the nominal voltage is higher, you can transform tension, for which various principles are acquaintances, p. and. a synchronized transformer or something similar.

The invention can also be optimized by install solar cells to the outer side of the fixing box to power the electric motors in current or charge a battery integrated for that. This measure has the advantage that a connection to the  vehicle power system is not necessary, and so you can limit the installation to screw the box to corresponding place of the superstructure of the truck, and therefore Everyone can perform this installation without knowing electrotechnical How the visible box surface measures possibly from case to case only 0.1 to 0.5 m 2, however, the energy achieved so it could be insufficient to trigger the electric motor directly. In this case, however, you can provide for energy accumulators, especially in the form of electric accumulators, to first accumulate enough amount of energy and then power the electric motor with it of the corresponding coil drum in current. Can be install the necessary electric accumulators for that too inside the coil drum, if the tube motor is already installed there p. and. You don't need the entire length of the coil drum.

To perform a defined rotating movement and coordinated, the electric motors should be coupled to a device of command. You have to coordinate the activation of electric motors and the brake device especially to the other coil drum so that a free rotating movement is possible and the information sheet cannot be broken. Even if the Drive motor of the other drum is the brake device, it must be ensured that this engine is in a state of smoothness, it is say it must be operated also (with limited power) to withstand coil movement, or at least it should not be put on It runs contrary to the movement of the coil. Therefore, a unique superimposed command apparatus has to control coordination of the movement of both coil drums. Preferably, this control unit is located inside the box of one of the two coil drums, preferably in an emptying sector remaining inside the corresponding coil drum. Thats why he coupling to the drive motor of this coil drum is possible simply by connecting wires. You can perform the coupling to the drive and / or brake device of the other coil drum or by an externally laid cable or by radio communication or by an infrared intersection point. Here, the optical way has proven its effectiveness, especially by infrared, because during the assembly of the coil drums the two box slots show the direction to the other coil drum, so that effective communication is guaranteed. Also, if used in this case drive motors powered by solar power is not necessary to lay cables, and so all the Installation can be mounted very easily. To put the engines running, relays or switches can be used electronic or also direct voltage actuators to be able to Start and stop the engines smoothly.

To improve the control characteristics, they can equip the motors with torque sensors, e.g. and. in form of motor current control. By coupling these torque sensors or from the motor current to the control unit, it can determine the tensile stress of the information sheet by subtraction of the pairs actuated on both coil drums, because if the information sheet is thin, the coil radius is constant, and as a result you can calculate the effort of torque-based traction by a proportionality factor. Further, In this case, a tensile stress limitation can be provided which disconnects one or both of the electric motors if it achieves or exceeds a value that puts the information sheet in danger.

An automatic adjustment of information sectors determined is possible if at least one drum shaft has a position transmitter. For that, however, you can also place brands that distinguish individual sectors of information to the sheet itself, p. and. printed marks in the area of a longitudinal edge in a normally transparent sector, the that a light barrier reads, which is mounted to the drum fixing or to the drum box; reflective areas, which deflect a ray of light to a sensor; metallic elements, which can be read by a inductive proximity switch, etc. Very simple facilities, however, they are also position transmitters, which are coupled to a drive motor, because especially if the information sheets are fixed with their extreme sides to the coil drums, the total number of engine revolutions is proportional to the length of the unwound sheet, and therefore a defined coordination to individual sectors of information is possible. In this case, the possibility of stopping the sheet transport device in a certain position, where the desired information sector is visible exactly among the two coil drums, without visual control by the driver of truck.

Preferably, the drive motors of the drums are coupled to an intersection point to connect a manual input device. Although sometimes a movement is desired permanent and slow transport of the coil drums, p. and. to slowly put forward bulky information successively readable, in most cases an adjustment is desired from the sector to sector information sheet. In this case, it you can do it while the vehicle stops and the driver controls visually and use an input device to stop the engines of drum coil drive at the right time. A such input apparatus may preferably be an apparatus laptop.

Although in the simplest cases they can be put the switches of the input device directly on the circuit of the drive motors of the coil drums, so that other control devices are not necessary, especially  information devices that are automatically activated provide a control device anyway, and if in this case pre-connect the intersection point to connect a device manual input, the commands given by the control device can act on this control device to influence the current of the drive motors of the coil drums.

If the intersection point is a connection of plug to connect an input device, additional wiring of the vehicle is not necessary. Rather, the driver for the vehicle and goes with the input device to the corresponding drum of coil, use the corresponding plug connection there and then start the drive motors to present Finally the desired information sector. Afterwards, the drive motors, and these then stabilize by their self-blocking qualities and therefore stopping any change of the information sheet Therefore, you can then disconnect the input device and put it p. and. in the driver's cab until Let him use it again.

Using another model, the point of intersection is an intersection point of wires or of radio transmission for communication with an input device installed in the driver's cab. In this case, you can also  during the trip, p. and. when a linguistic border is passed, give a corresponding adjustment command to present another sector of information. Here, a radio transmission intersection point It has the advantage that a vehicle wiring is not necessary and that the device according to the invention can be installed and placed underway with a few mechanical maneuvers. The corresponding radio transmission intersection point also makes possible a communication between both coil drums. In this case, you can especially install the control also inside the device input, and thus only the transmission of sensor signals over the position values and on the actual values of the current from the coil drums to the input device and in the direction opposite corresponding adjustment signals for the motors of actuation of the input device to the radio receivers installed in the area of the coil drums are necessary. In In this case, the control electronics can be taken in the cab of the truck power system driver, p. and. by a plug that can be connected to the cigarette lighter. This model is especially applicable if they decide on trailers, and the control device can always keep in the corresponding trailer.

It is an important functionality of the device entry that can be chosen by this one from several sectors of information provided on the information sheet. Similar to photos about the film of a small format camera, it can give numbers to individual sectors of information about the information sheet, and by entering the corresponding number the control device of the information device according to the invention can see what sector of information should be chosen and submit, and then you can perform the necessary operations to Run this command automatically.

Finally, it corresponds to the invention that in the input and / or control device is stored for each sector of information a position reference value, which is used when select this sector of information as the nominal value of position to adjust the corresponding information sector by evaluation of the true position value for a regulation of position. In this case, by the number entered of the desired sector of information can be determined immediately the corresponding value nominal position and transfer it to a position regulator, to that it then adjusts the true position value correspondingly, send the motors and finally stop them in the found final position. For that, the corresponding values Nominals of each information sector can be adjustable, especially by entering the corresponding sector number by manual adjustment in the optimal position, if that number is not determined internally by automatically numbering, and then by pressing a memory key to store the current true value of position sensor position of the corresponding number of sector with defined coordination. Such an entry makes possible a flexible adaptation at different distances between the two drums coil, which can be influenced by the type of construction of the corresponding truck and especially for the place of installation so by the contours of the information presented.

Other details, features, advantages and effects based on the invention result from the following description of preferred examples of type of the invention and by the graph. The graphics show the following:

Figure 1 a view of the back side of a truck with a superstructure of cargo space and a device of assembled information, which is in accordance with the invention;

Figure 2 a cross section of Figure 1 along line II - II;

Figure 3 a cross section of Figure 1 along line III - III;

Figure 4 a longitudinal section of the figure 2;

Figure 5 a perspective view of the side rear of a truck with an awning that covers the surface of loading and other fixed information device;

Figure 6 a side view of a semi-trailer with an information device changed and mounted next outer wall of cargo space; Y

Figure 7 a projection of a device information changed again, corresponding to figure 6.

Figure 1 shows a view, that a driver of car can see now many times while driving in the city, on highways and on highways during an Indian row traffic, it’s say the rear side 1 of a truck 2. Like superstructure 3 that encloses the cargo space has a width and height of approximately 2.5 to 2.8 m, only the back side 1 of the superstructure 3 has an area of approximately 6 m 2. Is a fact that this surface is used to present propaganda for a long time. However, changing such advertisements is only possible with a lot of work, because the information used should be  overpin, which is almost never done. Many times, the Information presented as telephone number, zip code, etc, they no longer correspond to the current data. If it's about of foreign trucks, many times nothing is possible understand the information presented, which is why almost without reason.

To present to the back side 1 of the 3 propaganda truck superstructure that can be changed very quickly, an information device is mounted here 4 according to the invention. Using the type shown in figure 1, the  device consists of two extended coil drum boxes 5, which are mounted using the type shown in figure 1 vertically on both sides of the rear side 1 of the truck 2 to the superstructure 3, and on an information sheet 6 lying between the coil drum boxes 5.

The information sheet can consist of printed plastic, and also of sail canvas, canvas, tear-resistant blind fabric, etc. The fabric can be equipped with a bottom layer that stabilizes the color primer. You can paint simple ads by hand. More detailed advertisements, in particular photographs, can be printed with portal printers in particular by inkjet technology eg using a digital model. The applied color layer can be sealed with a transparent protective layer as protection against
humidity.

As the section of the Figure 2, the coil drum box 5 encloses the drum of cylindrical coil 7, on which several layers 8 can be wound of the information sheet 6. To pass the information sheet 6 by box 5, is provided in its rear area, that is the area neighbor to the rear wall of cargo space 1, a slot 10, which extends over almost the entire length of the box 5. The area neighbor and rear 9 of box 5 has a flat shape to fix it to the flat rear wall of cargo space 1 and can have fasteners to screw it to a bottom, p. and. necklines to use fixing screws and / or rear parts spacers 11. On the other hand, the border area 12, opposite the rear wall of cargo space 1, of the drum box of coil 5 is domed in the form of a half of a cylinder, and its Convexity radius is about half the width of the box 5 and slightly larger than the maximum radius of the sheet coil 8, and thus it can be freely rotated inside the box 5 without rubbing. He back side plane 9 is joined with the domed front side 12 of the coil drum box 5 by rectilinear side surfaces 13. The coil drum box 5 is enclosed by a surface upper front and a lower front surface 14, so that during normal operation only the thin slot 10 keep free and therefore the penetration of dirt and silt in the Box 5 is almost impossible.

To attach information sheet 6 to the drum coil 7 or to take out the entire coil drum 7 together with the winding information sheet 8 of the coil drum box 5, its frontal area 12 is rotatable by one or more hinge element / s 15. The (flapper) sheet 15 is preferably in the area of a lateral surface 13, preferably to lateral surface 13 no grooved 10, and thus adjustable lid 12 can reach the side opposite 13 or more to slot 10. An interlocking mechanism does not shown in figure 2 ensures that the swivel lid 12 does not It can be opened carelessly.

Preferably, the coil drum box 5 is screwed close to the hinges 16 of a rear door of the cargo space 17 to this door 18, so that the opening movement of the door 17 is not hindered. For that, the distance between the outer side 13 of the coil drum box 5 and the hinges 16 can be approximately the width of the outer frame 19 of the rear wall of the cargo space 1, so that there is sufficient space for the coil drum box 5 next to the side wall 20 of the superstructure of the truck 3 if the door is opened
17.

Figure 2 shows that information sheet 6 is near the rear wall of cargo space 1; but nevertheless, for constructive reasons a small distance 21 is usually inevitable. To exclude the possibility of relative wind penetrate through this fact in intermediate space 21 and p. and. remove blowing information sheet 6 like a back wall candle of cargo space 1, it can be installed both at the top and at the lower edge area of cargo space doors 17 a U-shaped lane 22, as can be seen especially in the Figure 3. While lanes 22 are continuous from a box of the coil drum 5 to the other for fixing the device information 4 p. and. to a side wall 20 of the truck 2, where not there are doors, the rails of the type shown in figure 1 are divided into two halves, which are fixed, p. and. screwed at two doors of cargo space 17.

In addition, it should be considered that especially during the winter, trucks 2 that are driving on roads wet from the rain carry real swirling clouds of swirling and muddy water behind them, which is collected to the rear wall 1 of truck 2 and could be short-lived. cover and therefore make illegible the information printed on the information sheet 6. In addition, if the information sheet 6 is then wound, the soiled area would thus be transported in the coil drum box 5 and that would first lead to a huge thickening of the coil 8, so that it could rub against the cover 12; Second, there is the danger that dripping water is collected in the area of the floor of the box 5 and possibly damages electrical installations located there by a short circuit. Therefore, there is an additional transparent cover 23 outside the information sheet 6. As Figure 3 shows, this cover can consist of transparent plates, eg acrylic glass plates, which are installed in the rails of the upper side and the side bottom 22, 23 and that like these can also be divided into two halves to open the doors of the cargo space 17. Alternatively, it is also possible to use a transparent sheet 24 instead of an inflexible plate and fix it in the area of the upper and lower edge of the cargo space doors 17 pe by pressure buttons 25. For this, the pairs of these pressure buttons 25 can be installed pe to the outer side 26 of the guide rails 22. If this model is used , the sheet 24 can also be divided into two halves, however, it could also extend over the entire width of the visible information sheet 6, and to open a door of the cargo space 17 must be they laugh just open the 25 pressure buttons at a
side.

As figures 2 and 4 show, they can be fixed disconnectly the lateral ends of the extended blade information 6 also by pressure buttons 27 to the surface of the coil drum sleeve 7, especially in a cavity in longitudinal and grooved direction of coil drum 7, of so that the thickened pressure buttons 27 do not prevent a Constant coil procedure. As Figure 4 also shows, the coil drum 7 is also a hollow cylinder, which can have to its front ends ring molars (not shown in the figure) that extend radially to the outside and serve to guide the sheet 8 coil exactly in the center. Inside of the coil drum 7 is a cavity 28, which can be used both for housing as for drum coil drive 7. For that, a rod-shaped carrier 30 is anchored not orientably in front of box 5 between necklines alienated from each other 29 and located approximately in the center on the surfaces front 14 of box 5, p. and. by threaded ends on the front side 31, which pass through the necklines 29 and are fixed by locknut with bolted nuts or other thread elements 32. This element in the form of a bar can in the area of one or both surfaces front 14 free a box 33 to install a system electric and / or a control electronics, and also has a outer diameter smaller than the inner diameter of the drum of coil 7, and thus can be installed in the remaining annular cavity 28 approximately in the areas of each of both front surfaces 14 a bearing 34. In addition, magnetic poles can be mounted to the inner side of coil drum 7, which cooperate with electronic windings 35 located to the bearer in the form of 30 bar to make a torque between lighter / carrier 30 and rotor / coil drum 7. Current winding is sent 35 by the control device 33 according to the control commands given by the plug-in input device 36, and the power is taken fed to the electronic windings 35 of the power grid of the vehicle by a connection cable 37. Alternatively, they can use 55 photovoltaic elements installed in the jacket outside of the coil drum box 5, which first load an accumulator mounted in box 33, which then feeds the current winding 35.

The appliance can be firmly installed entrance 36 also in the driver's cab of truck 2 and communicate in this case or by a fixed wire connection or by broadcasting with the control unit located in box 33. Therefore it must be ensured that communication can be made or by the input apparatus 36 or directly between the elements of operation, ie relays or other connection elements or elements regulators or their excitations, of both coil drums 7, for that information sheet 6 is not broken by a drive opposite of the two coil drums 7 at the same time. To make a definite stop of the drive unit 35 is possible, can foresee p. and. in the area of box 33 a transmitter of position, which transmits to the control unit a detailed information on the current rotation position of the coil drum 7. Sensors for winding current can be used of current 35 to determine the torque and therefore also the tensile stress within the information sheet 6.

As Figure 5 shows, the two coil drum boxes 5 can be fixed, especially if the superstructure of the truck 40 is equipped with awnings, also horizontally to the rear wall 41 in the area of its upper and lower edge 42, 43. Therefore, to open the rear wall of the awning there is the possibility of placing the upper coil drum box 5 by the rear upper edge of the awning 42 to the upper side 44 of the superstructure of the truck 40, while anyway the lower coil drum box 5 can be installed under the rear apron or pe on the outside of a low folding forklift hatch towards
down.

In this case, in order to open the rear side of the awning 41, it is first possible to undo at least one transparent cover sheet 24 fixed by pressure buttons. Then, the information sheet 6 is completely wound from the lower coil drum 7, and then its box cover 12 is opened and the information sheet 6 from there located coil drum 7 is undone by the pressure buttons 27, and finally it can be wound to the upper coil drum 7. After folding the box 5 there, possibly together with the rear wall of the awning 41, and folding down the forklift flap that supports the lower coil drum box 5, it can be load the truck 39 as costum-
bre.

Figure 6 shows that you can mount the information device 4 according to the invention without changing also to the side wall 46 of a truck 47. Like distance 48 Between both coil drum boxes 5 is random, it can be covered the entire length of the wall 46 with an information device 4 for fixing their coil drum boxes in the vertical direction in the front and rear edge area 49, 50 of the wall 46.

In this case, it has been advantageous if a transparent canvas cover 51 fixed to the upper and lower side is attached as closely as possible to the wall 46 of the truck 47, because this way you can avoid an arrow on the information sheet 6. Canvas cover 51 may consist p. and. in several parts, which preferably have the same width, so that the assembly be easier A remaining slot can be filled by cutting a canvas cover throw to the desired width.

Figure 7 shows another possibility to use the information device 4. Here, both boxes of coil drum 5 for an information sheet 6 almost as in the Figure 5 horizontally to the upper and lower edge 52, 53 from the wall 46 of the truck 47. Therefore, the sheet of information 6 only for a corresponding dimension 54 approximately at the height of the wall 46 of the superstructure from the truck. On the other hand, in this case a device information 4 is not enough to cover the entire wall 46 by the limited length of coil drum boxes 5. Therefore, the In this case, the invention provides that several devices are installed of information 4 next to each other and they are coupled to each other, p. and. for connecting them to a common control device, so that can adjust them p. and. by a single input device simultaneously. Therefore, they can also be moved during the travel slowly, so that a kind of "flow advertising" it's possible.

Claims (8)

1. An information device (4) fixed to a truck (2; 39; 47), a truck trailer and / or a bus with a sheet (6), a canvas, a sail canvas or something similar extended and flexible that contains information, which can be intertwined with its both narrow sides around two coil drums (7), that have distance from each other, and that are almost parallel and mounted swivel you can wind the sheet, the canvas, the canvas of Candle or something similar in several layers. Each of the drums is coupled coil to rotatably adjust to a drive motor (35), so that different sectors of the information sheet (6) are visible The technical feature is that the engines of drive (35) of both coil drums (7) are coupled to a common control device (33) to perform defined and coordinated turning movements, so that the information sheet (6) stiffly between the coil drums (7) without breaking it, and coil reels are installed in such a way that sectors of the information sheet (6) between coil drums (7) are visible. 2. Information device according to claim 1, whose technical characteristic is that they are installed the coil drums (7) to the truck (2; 39; 47) in the area of a outer rear surface (1; 41) and / or lateral (20; 46) of the cargo space (3) or a cargo surface cover (40), and the coil drums (7) are installed in the area of two opposite edges (19; 42; 43; 49; 50; 52; 53) of the corresponding outer surface (1; 20; 41; 46) of the space of load (3) or a load surface cover (40). 3. Information device according to claim 1 or 2, whose technical characteristic is that the sheet of information (6) has a side ratio that is greater than 2: 1, preferably greater than 5: 1, especially greater than 10: 1. 4. Information device according to one of the preceding claims, whose technical characteristic is that the information sheet (6) has narrow elements at its sides fixing to the coil drums (7), especially pressure (27), hook elements, adhesive slats or something similar, whose partners (27) are installed on the surfaces of outer jacket of the coil drums (7). 5. Information device according to one of the preceding claims, whose technical characteristic is that each of the coil drums (7) is rotatably mounted (34) to a fixation (30). 6. Information device according to one of the preceding claims, whose technical characteristic is that each one of the fixings of the drums (30) has a box (5) that encloses the corresponding coil drum (7), which has a slot (10) along his shirt through which the sheet of Information (6) can happen. 7. Information device according to claim 6, whose technical characteristic is that a part (12) of the drum box (5), especially an area of its shirt circumference, it is foldable to make access possible to the coil drum (7). 8. Information device according to one of the preceding claims, whose technical characteristic is that use the drive motors (35) of both drums of coil (7) also as brake devices.