Abstract:
The invention relates to a mounting for a data conductor on a conductor strand of a conductor line. The invention further relates to an energy transmission system for transmitting electrical energy between a conductor line and an electrical consumer that can be moved along the conductor line and has at least one data conductor guided along the conductor line and at least one antenna arranged on the consumer, and to a data transmission system for contactless local data transmission between at least one data conductor guided along a conductor line and at least one antenna arranged on an electrical consumer that can be moved along the conductor line. The invention solves the problem of enabling a compact construction, simple, fast fitting and retrofitting of an energy transmission system and reliable data transmission in an energy transmission system by means of a mounting having a mounting means that is adapted to an outer contour of the conductor strand for fastening the mounting to the conductor strand and a fastening means for fastening the data conductor to the mounting at a distance from the conductor strand, and by means of an energy transmission system and a data transmission system, which comprise a multiplicity of mountings for mounting the data conductor at an invariant distance from a conductor strand of the conductor line.

Description:
FIELD OF THE INVENTION 
     The invention concerns a mounting for a data conductor on a conductor strand of a conductor line, an energy transmission system according to the preamble of Claim  15 , and a data transmission system according to the preamble of Claim  23 . 
     BACKGROUND OF THE INVENTION 
     With known energy transmission systems designed as conductor line systems, an electrical consumer moves along a conductor line and via a current collector and removes current from one or more conductor line strands. In order to also be able to transmit control data for the control of the vehicle, for example, a crane, some data lines are usually arranged along the conductor line. For example, some data lines are arranged along the conductor line, into which an antenna intervenes, which moves with the vehicle over an additional carrier of the vehicle. The data transmission usually takes place thereby only locally, limited to the area of the data conductors in which the antenna is actually moving. Other contactless, remote data transmissions, for example, a radio transmission, with a central transmission antenna and receivers arranged on the vehicles, in which, therefore, the distance between the central transmission antenna and the individual receivers ranges from some 10 to over one hundred meters, cannot be used for various reasons. Thus, with the high transmitted currents and voltages and the use of high-cycled changeovers with such conductor lines, there are often transmission-caused disturbances of such radio transmissions. In the state of the art, therefore, a locally limited contactless data transmission is used between the conductor line and the vehicle with such energy transmission systems, which requires a small spatial proximity between the antenna and receiver in the centimeter range. 
     As a rule, the known unit requires an additional, expensive track construction with its own complete mounting for the data conductor, which must be placed at a remote distance from the actual conductor lines. Also, its own collector trolley, on which the receiver of the movable consumer is located, is necessary. 
     In order to overcome this disadvantage, DE 10 2004 008 571 A1, which has a carrying track with a running surface with a vehicle bound to a track, provides for the integration of a slotted hollow conductor into the carrying track. The carrying track profile thereby has a slotted hollow space extending along the carrying track, wherein through the slot, an antenna located on a vehicle can couple or decouple electromagnetic waves into the hollow space. This model has a compact construction; however, a fitting or retrofitting of an existing unit or a replacement of a defective slotted hollow conductor is not possible because of the slotted hollow conductor integrated in the carrying track. 
     WO 2007/090500 A1 discloses a transport system with a track system and cars arranged on it such that they can move, wherein a primary conductor system is provided on the track system, on which at least one secondary coil, comprised by the individual car, is inductively coupled to the contactless transmission of electrical power and/or information. The stationary track system thereby has mounting elements for the primary conductors, which are clipped into a basic mounting profile. Furthermore, a slotted coaxial conductor can be clipped into the basic mounting profile via another mounting profile that is suitably constructed for the transmission of data, wherein the cars comprise at least one antenna, which is conducted along this coaxial conductor. This construction is expensive with respect to assembly technology, and in particular, a mounting possibility must already be provided in the basic mounting profile for the mounting profile of the coaxial conductor. A simple and subsequent assembly of a coaxial conductor is not readily possible there. 
     DE 103 47 851 A1 discloses an apparatus with which electrical energy can be transmitted from one energy cable, which is placed long a stationary track of a movement system, to a movable element that can travel along the track, wherein a transmission head of the movable element interacts inductively with the energy cable. The energy cable is attached by means of a carrying profile that essentially extends along the track and is affixed to it in a detachable manner. Immediately next to the energy cable, a data cable of a data bus is held by means of the same carrying profile. Among other things, the disadvantage with this is that the data cable cannot be mounted at a distance or separately from the energy cable. 
     EP 0 814 994 B1 concerns a track-conducted transport system with inductive energy transmission—among other elements, an E-shaped primary conductor on a U-shaped secondary conductor—and serves as an advantageous replacement for systems in which the energy is supplied via sliding contacts. Among other things, an embodiment is described there in which an outer U-profile of the primary conductor for the inductive transmission of energy is simultaneously used there as a carrying element for a coaxial cable for the transmission of information. A foot, firmly connected to the coaxial cable, however, is connected there only in a small sector with the primary conductor. 
     DE 33 11 362 C1 concerns a conductor line arrangement with line conductors lying parallel to one another, which are affixed on a common mounting and are placed on a carrying track of the conductor line arrangement. The mounting thereby has a mounting arm and a folding arm, which are connected to one another such that they can be folded via a theoretical bending site like a film hinge, and are additionally secured in the work position of the theoretical bending site via a mounting lug correlated with the mounting arm and a mounting claw correlated with the folding arm. An additional mounting for a conductor line is not provided there. 
     SUMMARY OF THE INVENTION 
     The goal of the invention is, therefore, to make available a mounting for a data conductor on a conductor line, an energy transmission system and a data transmission system, which overcome the aforementioned disadvantages and make possible a compact mode of construction, a simple, rapid fitting and retrofitting of an energy transmission system and a reliable data transmission. 
     The goal of the invention is attained by a mounting for a data conductor on a conductor line with the features of Claim  1 , an energy transmission system with the features of Claim  15 , and a data transmission system with the features of Claim  23 . Advantageous refinements and preferred developments of the invention are indicated in the subclaims. 
     The mounting in accordance with the invention for a data conductor on a conductor strand of a conductor line has a mounting means that is adapted to an outer contour of the conductor strand for the affixing of the mounting on the conductor strand, and an affixing means for the affixing of the data conductor to the mounting at a distance to the conductor strand. In this way, the data conductor can be maintained at the same distance to the conductor strand, wherein it can implement changes of the alignment of the conductor strand. 
     Preferably, the mounting means can have an affixing device for affixing the mounting on the conductor strand, wherein an additional affixing of the mounting means is guaranteed. 
     In a development that is advantageous with respect to assembly technology, the affixing means can have a holder with a holder space or an inner contour that is adapted to the outer contour of the data conductor or a data profile surrounding the data conductor. 
     In order to enable a rapid and simple insertion and removal of the data conductor or the data conductor profile into or from the holder, snap hooks can be provided in an open side of the holder space in order to snap in and hold the data conductor or the data conductor profile. 
     Advantageously, on a side of the holder opposite the open side of the holder space, it is possible to provide at least one affixing screw that extends through the mounting in order to affix the data conductor or the data conductor profile to the snap hooks. 
     In one advantageous embodiment, the data conductor profile can consist of two elongated profile halves that can be latched to one another, embracing the data conductor to some extent. 
     In one advantageous embodiment of the invention, the fastening means can be placed on one side directly on the mounting means, turned away from the conductor strand, so that a particularly space-saving development is possible. Preferably, in this case, with an energy transmission system in accordance with the invention, the data conductor can be placed by means of the mounting on a current remover, in particular, relative to another current remover of a current remover car of an external current remover, and the antenna can be placed on the current remover car. 
     The energy transmission system in accordance with the invention is characterized in that a plurality of mountings in accordance with the invention placed on the conductor line in its longitudinal direction, at a distance from one another, and described above and below, hold the data conductor at a distance from the conductor line. 
     In one advantageous development of the energy transmission system, another plurality of mountings in accordance with the invention placed on the conductor line in its longitudinal direction at a distance from one another, and described above and below, hold another data conductor at a distance from the conductor line, wherein another antenna is located on the consumer. 
     Advantageously, the mountings hold the data conductor at an essentially invariant horizontal and/or vertical distance from the conductor line, in particular, an external conductor strand, wherein, in this way, it is also guaranteed that the data conductor and the antenna remain transverse to the longitudinal direction of the conductor line and the line strand, relative to one another, in the same position. 
     Advantageously, several or all mountings can be placed on one single conductor strand, in particular, relative to other conductor stands of the conductor line of the external conductor strand of the conductor line, wherein in a corresponding, advantageous development, the antenna can be placed on a current remover, in particular, relative to other current removers of a current remover car of external current removers. 
     In one advantageous development, the part of the current remover on which the antenna is placed can be supported on the consumer such that it can move in a vertical direction, opposite the conductor line and the consumer, wherein a means is provided for the movement of the current remover in the direction of the conductor line. The means can be, for example, a spring that presses this part of the current remover from the consumer or a current remover car away toward the conductor line. In this way, it is advantageously possible to additionally compensate for elevation shifts of the conductor strand relative to the conductor line. 
     The data transmission system in accordance with the invention is characterized by a plurality of mountings in accordance with the invention, described above and below, to hold the data conductor at an invariant distance from a conductor strand of the conductor line. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention will now be described with the aid of an embodiment example, with reference to the accompanying drawings. In the figures: 
         FIG. 1  shows a schematic, three-dimensional view of a part of an electrical energy transmission system in accordance with the invention, with a data transmission system in accordance with the invention, and a mounting in accordance with the invention; 
         FIG. 2  shows a partially cutaway schematic top view of the energy transmission system of  FIG. 1 , seen from the rear to the right, at an incline, in  FIG. 1 ; 
         FIG. 3  shows a detailed view of the data transmission system in accordance with the invention of the energy transmission system from  FIG. 2 ; 
         FIG. 4  shows a section through a mounting in accordance with the invention; 
         FIG. 5  shows a section through the mounting from  FIG. 4 , along line A-A; 
         FIG. 6  shows the view of the mounting from  FIG. 4  on an insulation profile of the conductor line and with a data conductor inserted into a carrying profile; 
         FIG. 7  shows a schematic exploded section through the carrying profile with a data conductor from  FIG. 6 ; 
         FIG. 8  shows an alternative development of the data transmission system; 
         FIG. 9  shows a schematic, three-dimensional view of a part of an alternative electrical energy transmission system in accordance with the invention, with an alternative data transmission system in accordance with the invention, and an alternative mounting in accordance with the invention; 
         FIG. 10  shows a section through the alternative mounting in accordance with the invention from  FIG. 9 ; 
         FIG. 11  shows a section through the mounting from  FIG. 10 , along line B-B; 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       FIG. 1  shows an energy transmission system in accordance with the invention as it is used, for example, to provide a nondepicted, movable electrical consumer with electrical energy, designed as a container stapling crane. 
     To this end, a current remover car  1 , alluded to only schematically in  FIGS. 1 and 2 , is mounted on the crane. Five current removers  2 ,  2 ′,  2 ″,  2 ′″,  2 ″″, etc. [sic], designed in a largely identical manner, are affixed on the current remover car  1 , and for this reason, above all, current remover  2  is described below. The statements in this regard are also correspondingly valid for the other current removers  2 - 2 ″″ etc., unless otherwise indicated. 
     In a known manner, the current remover  2  supplies, via a supply cable  3 , electrical consumers of the vehicle with electrical energy. To this end, a slider  4  is pressed upward, by means of the force of a spring, against an electrical conductor  5   a , held in a conductor profile  5 . Alternatively, the conductor profile  5  can also be designed to be electrically conductive. In normal operation, the conductor  5   a  is under tension, so that a current is transmitted from the conductor  5   a  to the slider  4 . Usually, several current removers  2 - 2 ″″, etc. are provided for the supply of electrical energy to the electrical consumers, whereas one of the current removers intervenes for the grounding of the vehicle of grounding conductors held in a conductor profile. 
     For the additional electrical insulation and for the protection against external effects, the conductor profile  5  is inserted into an insulation profile  6 . The conductor profile  5  and the insulation profile  6  form an elongated conductor strand  7 , which with several essentially identical conductor strands  7 ′,  7 ″,  7 ′″,  7 ″″, running parallel to one another, form a conductor line  8 . For reasons of simpler representation, only the four conductor strands  7 ,  7 ′,  7 ″,  7 ′″ from  FIG. 2  are shown in  FIG. 1 . The conductor strand  7  is affixed to a carrying rod  11 , shown only in  FIG. 2 , by an insulation profile carrier  9  of an affixing element  10 , embracing the insulation profile  6 . The other conductor strands  7 ′,  7 ″,  7 ′″,  7 ″″ are accordingly affixed to the carrying rod  11  as described above. As can be seen from  FIG. 1 , the conductor strands  7 ,  7 ′,  7 ″,  7 ′″,  7 ″″ are affixed to the conductor line  8  at regular intervals of the corresponding carrying rods. 
     The components of the energy transmission system described above are, in fact, known to the specialist in their development and function and do not require any further explanation. 
     For the transmission of data between the vehicle and the energy transmission system—for example, control data for the vehicle or energy request data by the vehicle on the energy transmission system—a data transmission system  12  is provided. The data transmission system  12  has an antenna  13 , which is preferably mounted on the outside of the current remover  2 , completely on the left side in  FIG. 2 , which is shown in detail in  FIG. 3 . In this way, the antenna  13  can be directly carried along by the current remover car  1 , and a compact construction is produced. The antenna  13  is connected to a data evaluation unit of the vehicle via conduits that are not depicted. 
     As the counterpart of the antenna  13 , a data conductor  14  is provided, which is surrounded by a two-part data conductor profile  15  made of plastic. The data conductor profile  15  is used for protection, as a mounting means, and for the insulation of the data conductor  14 . The data conductor  14  is connected to a data transmission unit of the energy transmission system. 
     In order to enable a secure data transmission between the antenna  13  and data conductor  14 , which is insensitive to external disturbances but nevertheless energy-saving, the data conductor  14  is affixed to the conductor strand  7 , corresponding to the current remover  2 , by means of a mounting  16  in accordance with the invention, at a small distance A from the antenna  13 . As can be seen in  FIG. 1 , the mounting  16  is placed in the longitudinal direction L, directly next to the affixing element  10  on the conductor strand  7 . Along the conductor strand  7 , additional mountings  16 ′,  16 ″ in accordance with the invention, at regular longitudinal intervals, hold the data conductor  13  in the data conductor profile  15  at a largely invariant distance A from the conductor strand  7 . Small, manufacturing- and assembly-caused deviations are clearly smaller than distance A. This guarantees that the antenna  13  is always conducted past the data conductor  14  at a largely invariant lateral distance A. The reason for this is that by affixing the mountings  16 ,  16 ′,  16 ″ directly on the conductor strand  7 , eventually curvatures or a sagging of the conductor strand  7  are carried out between the carrying rod  11  by the data conductor  14  and thus compensated for. Likewise, the mountings  16 ,  16 ′,  16 ″, etc., also guarantee that the data conductor  14  is conducted in a vertical direction at the largely invariant height relative to the conductor strand  7 . Since the antenna  13  is advantageously supported on the part of the current remover  2  that is pressed toward the conductor  5   a , antenna  13  and data conductor  14  also remain in the vertical direction, aligned largely unchanged with respect to one another. In particular, also, by the pressing of the counterpart  4 , height shifts of the conductor strand  7 , produced on the conductor  5   a , are carried out by the mountings  16 ,  16 ′,  16 ″, etc., affixed directly on the conductor strand  7 , and thus compensated for. The antenna  13  and the data conductor  14  thus remain transverse to the longitudinal direction L, relative to one another, in the same position. 
     The mounting  16  will now be explained in detail, above all with the aid of  FIGS. 4-6 . The mounting  16  has the cross section shown in  FIGS. 4 and 6 , wherein, for reasons having to do with a simpler representation, the mounting  16  is drawn as a solid profile section. The mounting  16  can advantageously be made of plastic or another dimensionally stable material that can yield to certain limits. It can advantageously be made of a hollow profile material, as shown in  FIGS. 2 and 3 , or a solid material, as drawn in  FIG. 3  [sic;  FIG. 4 ]. 
     For the affixing on the conductor strand  7 , the mounting section  17  of the mounting  16  has two elastic, but nevertheless dimensionally stable, mounting legs  19 ,  19 ′ extending from a middle section  18  at a distance from one another, opposite one another, with latching lugs  20 ,  20 ′ facing one another, pointing toward the middle section  18 , with corresponding latching grooves  21 ,  21 ′ on their front, free ends. For affixing the mounting  16  on the conductor strand  7 , the mounting section  17  is stuck, from above in  FIG. 6 , onto the insulation profile  6 , shown only schematically in  FIG. 6 , wherein the mounting legs  19 ,  19 ′ are thereby pressed away laterally. If the mounting section  17  is completely set on the insulation profile  6 , the latching lugs  20 ,  20 ′snap on the front, free end of the insulation profile  6 , which is the lower end in  FIG. 6 , via corresponding latching legs  22 ,  22 ′. 
     The mounting legs  19 ,  19 ′ are advantageously designed somewhat longer than side walls of the essentially U-shaped insulation profile  6 , and the inner distance between the two mounting legs  19 ,  19 ′ is advantageously somewhat larger than the outer distance of the side walls of the insulation profile  6 . The space surrounded by the middle section  18  and the mounting legs  19 ,  19 ′ and the inner contour of the mounting section  17 , defined in this way, is thus adapted to the outer contour of the insulation profile  6 . In this way, a secure seat of the mounting  16  can be ensured on the insulation profile  6 , in particular, with only small differences between the inner contour of the mounting section  17  and the outer contour of the insulation profile  6 . 
     In addition, for the further improvement of the seat of the mounting  16  on the insulation profile  6 , a fixing device  23  can be provided on the area of the mounting section  17 , which is the upper area in  FIGS. 4-6 . The fixing device  23  has a clamping sheet  24 , which can be readily recognized in  FIG. 5 , with a clamping section  25 , which is flat in the unburdened state. On the ends  26 ,  26 ′, which are the right and left ends in  FIG. 5 , the clamping sheet  24  is bent around 180° and meshes into latching slits  27 ,  27 ′ of the mounting section  17 , so that the clamping sheet  24  cannot be readily removed. In the unburdened state, the clamping section  25  is flush on the middle section  18  of the mounting section  17 . Furthermore, a clamping screw  28  is provided on the mounting section  17 , which can be screwed, via mounting nuts  29  affixed on the mounting section  17 , toward the clamping sheet  24 . In this way, as can be seen in  FIG. 6 , the clamping sheet  24  can be pressed from above against the insulation profile  6 , wherein the latching lugs  20 ,  20 ′ of the mounting legs  19 ,  19 ′ are firmly pulled toward the latching legs  22 ,  22 ′ of the insulation profile  6 , and thus the latching legs  22 ,  22 ′, into the latching grooves  21 ,  21 ′, so that the mounting  16  can be additionally fixed on the insulation profile  6  in a rapid and simple manner. 
     From the mounting section  17 , a cantilever arm  30  of the mounting  16  runs laterally and transverse to the longitudinal direction L to a data conductor section  31 . The cantilever arm  30  has available a slanted area, which goes over into the data conductor carrying section  31 . 
     Likewise, however, other shapes can be chosen for the mounting  16 , which ensure that the data conductor  14  is held at a desired distance from the conductor strand  7 . 
     The data conductor carrying section  31  has a holder  32 , turned toward the mounting section  17 , for the data conductor profile  15  of the data conductor  14 , wherein the data conductor profile  15  from  FIGS. 2 and 3  is shown merely schematically in  FIGS. 6 and 7 . The holder  32  advantageously has, in this respect, an inner contour with a U-shaped cross section, adapted to the outer contour of the data conductor profile  15 . On the open side of the holder  32 , snap hooks  33 ,  33 ′ are provided, which securely hold the data conductor profile  15  in the holder  32 . Since the snap hooks  33 ,  33 ′ can be elastically pressed to the side to a certain extent, the data conductor profile  15 , which can be clearly seen in  FIG. 6 , is clipped into the holder  32  simply and readily. The holder  32  thus makes available a secure seat of the data conductor profile  15  on the mounting  16 . As can be seen, in particular from  FIG. 5 , the lower snap hooks  33  can also be subdivided in the longitudinal direction L, wherein a middle part of the snap hook is moved slightly upward opposite the parts lying next to it. In this way, the data conductor profile  15  can be clipped into and again removed from the holder more readily. Alternatively or additionally, the upper snap hook  33 ′ can also be advantageously subdivided, correspondingly or in an opposite manner. 
     In order to be able to additionally secure the data conductor profile  15  in the holder, a fixing screw  34  is provided, which can be screwed through a threaded hole that extends in the area of the holder  32  through the data conductor section  31 . In this way, the data conductor profile  15  is pressed from the left side, in  FIG. 6 , to the right, against the snap hooks  33 ,  33 ′ and sits firmly there. 
     In order to be able to simply insert the data conductor  14  into the data conductor profile  15 , the data conductor profile  15  advantageously has the structure of identically designed, elongated profile halves  35 ,  35 ′, schematically shown in the cross section in  FIG. 7 . At an end of the profile halves  35 ,  35 ′, a latching space  36 ,  36 ′ is thereby provided, in which a latching cross  37 ,  37 ′ of the other opposite end of the profile halves  35 ,  35 ′ is introduced and can be latched therein. In this respect, the transverse beams of the latching crosses  37 ,  37 ′ are designed somewhat wider than the openings of the latching spaces  36 ,  36 ′. Since the profile halves  35 ,  35 ′ can be made from a material which is, to a certain extent, elastic, for example, plastic, the profile halves  35 ,  35 ′ can thus be simply clipped together, wherein the data conductors come to lie between the profile halves  35 ,  35 ′ and are held flush there. Furthermore, the profile halves  35 ,  35 ′ have stops  38 ,  38 ′, which are provided to latch with the snap hooks  32 ,  32 ′ of the holder  32 . Bars  39 ,  39 ′ are provided between elongated legs  40 ,  41  or  40 ′,  41 ′, so as to be able to press the data conductor profile  15  securely, with the fixing screw  34 , against the snap screws  32 ,  32 ′. 
       FIG. 8  shows another development of an energy transmission system in accordance with the invention, which is largely in agreement with the energy transmission system described above. For the same parts, therefore, the same reference symbols are used and only the differences between the two developments are described below. 
     The alternate energy transmission system differs, on the one hand, in the number of conductor strands  107 ,  107 ′,  107 ″,  107 ′″, and  107 ″″ from the development according to  FIG. 2 , wherein this is a common development for the specialist. For the advantageous increase in the data transmission rate, however, another correspondingly developed data transmission system  112  is placed here, on the outside, which is entirely to the right in  FIG. 8 , in addition to the data transmission system  12  on the left conductor strand  107  in  FIG. 8 . To this end, another antenna  113  is affixed on an outside of a current remover  102 , whereas another data conductor  114  is on the external conductor strand  107 ″″, via a mounting  116  in accordance with the invention. As described above, the data conductor  114  is held on the external conductor strand  107 ″″ via other mountings in accordance with the invention, along the conductor line  8 , wherein the entire arrangement of the data transmission system  112  is placed merely mirror-inverted to the left data transmission system  12 . 
     By means of the mounting  16  in accordance with the invention, the data conductor  14  can be held in a simple and secure manner at a previously specified distance from the conductor strand  7 , and thus from the antenna  13  of the current remover car  1 . An expensive track construction for the data conductor with a carrier or other additional components is thus no longer necessary. Moreover, an already existing conductor line  8  can be simply retrofitted and a defective or used-up data conductor  14  can be simply replaced. In that the data conductor  14  is held at a previously specified distance from the conductor strand  7  and carries out the routing of the conductor strand  7 , a very reliable, low-consumption data transmission can be ensured as a result of the distance between the antenna  13  and data conductor  14 , which fluctuates only to a very small extent. In spite of the simple replacement capacity of the data line  14 , a compact construction of the conductor line  8  and also of the current remover car  2  is produced. 
       FIG. 9  shows a schematic, three-dimensional view of a part of an alternative electrical energy transmission system in accordance with the invention, with an alternative data transmission system in accordance with the invention, and an alternative mounting in accordance with the invention, which essentially corresponds to the embodiment according to  FIGS. 1-7 . Corresponding parts are therefore designated the same and provided with the same reference symbols. 
     A current remover car  201 , alluded to schematically in  FIG. 9 , has current removers  202 ,  202 ′,  202 ″,  202 ′″, developed identically to a large extent and in a manner which is in fact known, for which reason, above all, the current remover  202  is described below. The statements in this respect are also correspondingly valid for the other current removers  202 - 202 ′″, etc., unless otherwise indicated. In a manner which is in fact known, the current remover  202  supplies electrical energy to the electrical consumer of the vehicles. To this end, as with the embodiment described in  FIGS. 1-7 , a slider  204  is pressed upward, by means of the force of a spring, against an electrically conductive conductor profile  205 . 
     For the further electrical insulation and for the protection against external effects, the conductor profile  205  is inserted into an insulation profile  206 , which together, again, form an elongated conductor strand  207 . In addition to this, essentially identically developed conductor strands are not designated extra in  FIG. 9  for reasons having to do with a simpler representation. The conductor strand  7  and the other conductor strands are fastened to the vehicle or the crane via a carrying rod  211 . In the carrying rod  211 , carrying rollers  242  and guide rollers  243  of the current remover car  201  also run in a manner which is in fact known. The components of the energy transmission system described above are in fact known to the specialist with respect to the development and the function, and require no further explanation. 
     In contrast to the embodiment shown in  FIGS. 1-7 , a data transmission system  212  is provided in the alternative embodiment of the invention shown in Figure [sic; no number given], in which the antenna  13  is not fastened to one of the current removers  202 - 202 ′″, but rather to a frame  244  of the current remover car  201 . The data conductor  14  is again provided as the counterpart of the antenna  13 ; it is surrounded by the two-part data conductor profile  15  made of plastic. 
     The data conductor profile  15  with the data conductor  14  is fastened here to the conductor strand  207 , corresponding to the current remover  202 , by means of an alternative mounting  216  in accordance with the invention, at a small distance from the antenna  13 . The mounting  216  corresponds, in many parts, to the mounting  6  from  FIGS. 4 and 5 , so that, below, only the differences are explained with the aid of  FIGS. 10 and 11 . The same parts again bear the same designations and the same reference symbols, so that one can dispense with a detailed description of these parts here, as happened already for  FIGS. 4 and 5 . 
     The mounting  216  differs from the mounting  6  essentially in that the data carrier profile  15  is not held at a distance from the conductor strand  207  via a cantilever arm  30 , but rather is placed directly on a side of a dimensionally stable mounting leg  219  of the mounting  216 , turned away from the mounting leg  19 ′. 
     In order to fasten the mounting  216  on the conductor strand  207 , the mounting leg  219  also has a latch lug  20 , pointing toward the middle section  18 , just like the mounting leg  19  from  FIG. 4 , with a corresponding latch groove  21  on its front, free end. Just like the mounting  16  from  FIG. 4 , the mounting  216  can therefore be stuck on the conductor strand  207 . Here too, a fixing device  23 , described in detail in  FIGS. 4-6 , can also be provided advantageously for the further improvement of the seat of the mounting  216  on the insulation profile  6 . 
     In contrast to the embodiment according to  FIG. 4 , the mounting leg  219 , however, has the data conductor section  31 , shown in  FIGS. 4 and 6 , with a holder  232  on its outside. In the embodiment according to  FIGS. 9-11 , the holder  232  for the data conductor profile  15  of the data conductor  14 , however, is turned away toward the outside and away from the mounting section. Otherwise, the holder  232  merely differs from the one in [sic] holder  32  from  FIGS. 4 and 6  in that a fixing screw  34  is not provided here. 
     In order to guarantee the stability of the holder  232  and in particular its bottom  245 , at least one bar  246  is provided on the side of the leg  219 , facing the leg  19 ′, in the area of the bottom  245 , with the bar running in the longitudinal direction L of the conductor strand  207 . This bar  246  is pressed into the holder  232  against the insulation profile  6  with the conductor profile  5 , in particular with the insertion of the data conductor profile  15  into the holder  232  against the insulation profile, so that the bottom  245  of the holder  232  is hardly pressed through. Instead of a bar  246 , it is also possible to provide several bars or other reinforcements for the bottom, for example, a continuously thicker bottom or longitudinal and transverse bars. The embodiment shown in  FIG. 10  has the advantage that the bottom  245  can yield at least slightly, so that the legs of the holder  232 , carrying the snap hooks  33 ,  33 ′, can yield more rapidly with the insertion of the data conductor profile  15  and are not stressed so much, as would be the case with a thicker and/or stiffer bottom  245 . 
     The alternative embodiment of the mounting described in  FIGS. 9-11  has the advantage of a very compact construction, in which no overhanging cantilever arm  30  of the mounting  16  need be provided. It is precisely with very narrowly built current remover systems, thus, that a data transmission system  212  in accordance with the invention can still be used. Also, it is possible in this embodiment to readily insert the data conductor profile  15  with the data conductor  14  from the outside into the holder  232  of the mounting  216 , so that a simple assembly and dismantling of the data conductor profile  15  with the data conductor  14  can be made possible, and a damage of the cantilever arm  30  of the mounting  16  can be avoided.