Connecting device of an overhead line system and overhead line system

Abstract

The invention relates to a connecting device 1 of an overhead contact line system, wherein the connecting device 1 connects at least one contact wire 2 of the overhead contact line system and at least one further component of the overhead contact line system or a structure. The connecting device 1 has at least two parts 6, 7 that are slidable relative to each other, wherein the first part 6 is at least indirectly connected to the contact wire 2 of the overhead contact line system and the second part 7 is at least indirectly connected to the at least one further component of the overhead contact line system or the structure.

Description

[0001] The invention relates to a connecting device of an overhead line system and an overhead line system with at least one connecting device.

[0002] Overhead line systems for at least partially electrically powered, rail-bound and non-rail-bound vehicles, such as electric rail vehicles or electric trucks, usually have one or two flexibly suspended contact wires that are suspended either by hangers or hanger cables from one or two supporting cables or from other supporting structures. The pantograph of a vehicle presses against the contact wire from below with a preset contact force. This results in a lift of the contact wire, which is a result of the contact force of the pantograph and the elasticity of the contact wire. The elasticity of the contact wire depends on the design of the overhead line and can vary locally. The aim is to achieve the most uniform elasticity possible along the overhead line in order to ensure a uniform lift along the contact line with a constant contact force.The aim is to keep the height of the contact point above the vehicle level, for example track or road, constant, since changes in height can lead to minima and maxima in the contact force, which increase wear and thus reduce the service life of the system. The hangers of the overhead line are subjected to mechanical stress due to the proportional mass of the contact wires attached to them and, depending on the design of the overhead line, e.g. skewed construction, also due to lateral tensile forces. When the pantograph passes by, the hanger is partially or completely relieved of load because the uplift of the contact wire is partially compensated by the simultaneous uplift of the suspension cable. If the uplift of the contact wire is greater than the simultaneous uplift of the suspension cable, the hanger is completely relieved of load and the connected, flexible hanger cable is compressed, reducing the spatial distance between the contact wire and the suspension cable.This is particularly noticeable when the suspension cable is very flexible, such as in the immediate vicinity of the suspension cable at the support point. By compressing the suspension cable, it is still possible to ensure free lifting for the pantograph. The function of the suspension cable, which is to absorb tensile forces while avoiding compressive forces resulting from uplift caused by compression, is an important prerequisite for a uniform contact force.

[0003] In applications with limited installation space, particularly in structures such as under bridges, in tunnels, under variable message signs, etc., through which the overhead line system and thus the overhead lines pass, it may be necessary to limit the lift of the contact wire. Since the lift of the contact wire depends on the contact force of the pantograph, pantographs with very high contact force, for example, can lead to impermissibly high lift. Particularly in limited installation space, electrical safety distances may be exceeded or there may be a risk of collision with, for example, nearby structures, components, or objects, etc. In such cases, it is necessary to limit the lift accordingly.

[0004] In addition, in the area of ​​switch connections, stations and parallel spans, it may happen that catenaries have to cross, i.e. the contact wire and / or suspension cable of one catenary have to pass diagonally between the hangers of another catenary. Particularly with a small crossing angle and / or close hanger spacing, a collision between the hangers of one catenary and the suspension cable and / or contact wire of the other catenary cannot be avoided or cannot be reliably avoided. To avoid such collisions, either a different, significantly more complicated and therefore more expensive switch covering must be selected or a hanger element must be used which creates the direct connection between the suspension cable and the contact wire using a rigid, encompassing profile, for example an arched clamp or hanger clamp.In this case, there is no longer a suspension cable between the contact wire and the suspension cable, but rather a rigid structure that can no longer be compressed. In this case, the uplift of the pantograph is transferred directly to the suspension cable or, in the case of a suspension cable with little or no flexibility, e.g. in the immediate vicinity of a support point, means that the uplift of the pantograph is not possible. In this case, the contact point of the pantograph shifts downwards or has to be shifted downwards, which leads to local extremes in the contact force and very severe wear at this point. In the case of overhead lines under or in structures such as bridges, tunnels, train stations, etc., the uplift of the contact wire is also only possible to a limited extent due to lack of space. In these cases, too, the uplift must be limited.

[0005] Lift limiters are now commonly used in pull-off brackets for side supports, which are used to fix the contact wire in its lateral position at the support point. For this purpose, the pull-off bracket has a pressure point at which, beyond a certain lift, the side support can no longer be lifted because it is braced between its rotating suspension point and the pressure point by the upward force. However, this solution can only limit the lift at the support point, not at any arbitrary location within the longitudinal span. As an alternative to lift limiters, rigid spacers with insulating properties are also installed between the contact wire and the obstacle. In this case, the contact wire is rigidly connected to the obstacle and a lift of the pantograph is no longer possible. This, in turn, has a correspondingly negative impact on the contact force quality and, in particular, on wear.

[0006] The invention is based on the object of providing a connecting device with which the lift of the contact wire can be limited at any point on an overhead line.

[0007] The problem is solved by the features of independent patent claim 1. Further developments and embodiments of the invention can be found in the features of the dependent patent claims.

[0008] For this purpose, a connecting device of an overhead line system is specified, wherein the connecting device has at least two parts which can be displaced relative to one another, wherein the first part is connected at least indirectly to at least one contact wire of the overhead line system and the second part is connected at least indirectly to at least one further component of the overhead line system or a structure.

[0009] The solution according to the invention has the advantage that by means of the connecting device the contact wire is connected to another component of the overhead line system or a structure, for example bridges, tunnels, railway stations, variable message signs, etc. and thus a required or desired distance between the contact wire and the other component(s) or structure(s) is not undercut due to uncontrolled deflections and the required lifting limitation is ensured.

[0010] According to a preferred embodiment of the invention, the first part of the connecting device is connected to the at least one contact wire of the overhead line system by means of a clamp. This ensures very simple and quick installation of the connecting device to the contact wire using commonly used clamps.

[0011] According to a further preferred embodiment of the invention, the at least one further component of the overhead line system is a suspension cable, wherein the second part of the connecting device is connected to the at least one suspension cable of the overhead line system by means of a hanger clamp, for example, a curved clamp. This also ensures very simple and quick installation of the connecting device to a suspension cable using commonly used hanger clamps.

[0012] According to a further preferred embodiment of the invention, the first part of the connecting device is designed as a rod-shaped profile, wherein the first part of the connecting device has a guide device for connection to the second part of the connecting device in the region of one end and a first connection element in the region of the opposite end, wherein the first connection element can be connected to the clamp. This not only ensures a simple connection between the first and second parts of the connecting device, but also enables the first part of the connecting device to be connected to the clamp very quickly, easily and permanently securely by means of the first connection element, for example with a screw connection. Of course, all possible other types of connection are also included.

[0013] Particularly preferably, the rod-shaped profile can be designed as a solid profile or as a hollow profile. Depending on the specific circumstances or requirements, the rod-shaped profile can be designed as a hollow profile, for example, for weight reasons, or alternatively, for example, to ensure particular stability, as a solid profile. A design as a cylindrical rod, for example, is particularly simple and cost-effective to manufacture.

[0014] According to a further particularly preferred embodiment of the invention, the first part of the connecting device can be constructed in several parts. In particular, the guide device can be manufactured separately and designed differently and then connected, in particular screwed, to the rod-shaped profile. For this purpose, the rod-shaped profile has, for example, a corresponding hollow space with an internal thread at one end, which is open at the end and into which one of the differently designed guide devices can be screwed. Other types of connection are of course also conceivable and possible. Compared to a one-piece design, the individual, separately manufactured parts can thus be coordinated more precisely with one another and assembled to form the first part. Furthermore, in this way, different guide devices can be used or employed depending on the local conditions or requirements.In particular, the assembly of the connecting device can be greatly simplified and facilitated in this way.

[0015] According to a further preferred embodiment of the invention, the second part of the connecting device is designed as a hollow profile, wherein the second part of the connecting device has a first stop element in the region of one end and a second stop element with a second connection element in the region of the opposite end, wherein the second connection element is connectable to the hanger clamp. Particularly preferably, the second part of the connecting device is designed in several parts.

[0016] In particular, the first and second stop elements can be manufactured separately, designed differently depending on requirements, and then connected, in particular screwed, to the hollow profile. For this purpose, the hollow profile has, for example, a corresponding internal thread at each end, into which a stop element can be screwed. Other connection types are of course also conceivable and possible. Compared to a one-piece design, the individual, separately manufactured parts can thus be more precisely coordinated and combined to form the second part. In particular, this greatly simplifies and facilitates the assembly of the connecting device.

[0017] In addition, this allows for the use of different guide devices depending on local conditions and requirements. The hollow profile can be designed, for example, as a tube or in any other possible, practical shape.

[0018] According to a further preferred embodiment of the invention, the first part and the second part of the connecting device are designed to be movable within one another. Particularly preferably, the first part is movably connected to the second part of the connecting device by means of the guide device, thus creating a guide by means of which both components can be freely pushed into one another or pulled apart. In this way, the mutual or opposing movement of the first and second parts of the connecting device is ensured in a simple and reliable manner, since, in particular, the guide device prevents mutual tilting of the first and second parts of the connecting device.

[0019] According to a further preferred embodiment of the invention, the first stop element of the second part of the connecting device is designed as an upper stop for the first part of the connecting device and the second stop element of the second part of the connecting device is designed as a lower stop for the first part of the connecting device. Particularly preferably, the connecting device has an adjustment range between the lower and the upper stop, in which the first part of the connecting device is displaceably arranged in the second part of the connecting device. According to a likewise preferred embodiment of the invention, the adjustment range is limited on one side by the stop of the guide device on the upper stop and on the opposite side by the stop of the guide device on the lower stop.

[0020] In this way, the lift of the contact wire can be limited to the desired distance and thus the lift limitation required depending on the local conditions can be ensured accordingly.

[0021] Particularly preferably, an overhead line system is equipped with at least one connecting device according to one of claims 1 to 13.

[0022] In summary, the connecting device according to the invention makes it possible to limit uplift at any location within the catenary of an overhead line system, in particular not only at the support point, provided that a suitable supporting structure is present that can divert the compressive force of a pantograph against the respective component. Furthermore, it is thus also possible to construct overhead lines with tight curve radii, even on very winding routes. The connecting device according to the invention is also so narrow that it can always keep the required lateral clearances next to the contact wire clear for a pantograph of electrically powered road vehicles.Thus, the connecting device described herein as well as the corresponding overhead line systems with such connecting devices can be used and are suitable for both rail-bound and non-rail-bound electric vehicles, and in particular for eHighway systems, for example for e-trucks or e-buses, etc.

[0023] Preferred embodiments of the invention will be explained in more detail below with reference to the drawings. They show: Fig. 1 a cross-section of a first embodiment of the connecting device according to the invention with the first part at the lower stop, Fig. 2 a perspective view of a first embodiment of the connecting device according to the invention with the first part at the lower stop, Fig. 3 a cross-section of a second embodiment of the connecting device according to the invention with the first part at the upper stop, and Fig. 4 a perspective view of a second embodiment of the connecting device according to the invention with the first part at the upper stop.

[0024] In the Fig. 1 to 4, identical components are designated by the same reference numerals, even if the corresponding components may be designed differently. Fig. 1 and Fig. 2 a first embodiment and in the Fig. 3 and Fig. 4 a second embodiment of the connecting device 1 according to the invention is described.

[0025] Fig. 1 shows a cross section of a first embodiment of the connecting device 1 according to the invention consisting of a first part 6 and a second part 7, wherein the first part 6 of the connecting device 1 is pushed into the second part 7 of the connecting device and the two parts 6, 7 are movably connected to one another by means of a guide device 10 of the first part 6, whereby an adjustment range 13 is created in which both components 6, 7 can be pushed into one another and pulled apart in an essentially freely movable manner.

[0026] The two parts 6, 7 are each made up of several parts, the first part 6 is in accordance with the design in Fig. 1 is designed in two parts and the second part 7 in three parts. The first part 6 is designed as a rod-shaped profile, to ensure special stability as a solid profile, here as a cylindrical rod and acts as an inner profile or piston. The first part or the rod-shaped profile 6 of the connecting device 1 has a guide device 10 at the upper end, i.e. at the end located in the second part 7, and a first connecting element 8 at the opposite, lower end, with which the rod-shaped profile 6 is connected to the contact wire 2 by means of a clamp 3. The rod-shaped profile 6 or the cylindrical rod is screwed to the clamp 3 by means of the first connecting element 8, although alternative types of connection, for example adhesive or welded connections, are also possible here.The rod-shaped profile 6 with the first connecting element 8 is advantageously designed as a single piece, although the first connecting element 8 can also be designed as a separate part for detachable connection to the rod-shaped profile 6 or the cylindrical rod. The guide device 10, designed as a separate component, is shown in the embodiment shown in accordance with FIG. Fig. 1 is screwed to the rod-shaped profile 6, although other connection types are of course also conceivable and possible. For this purpose, the rod-shaped profile 6 has a corresponding hollow space with an internal thread at the end to which the guide device 10 is screwed, into which the guide device 10 can be screwed.

[0027] The second part 7 is designed as a hollow profile, here tubular, and acts as an outer hollow profile or housing for the rod-shaped profile 6, which acts as a piston. The second part or the hollow profile 7 of the connecting device 1 has a first stop element 14 in the area of ​​one end and a second stop element 15 in the area of ​​the opposite end, which second stop element 15 comprises a second connection element 9, with which the hollow profile 7 is connected to further components of the overhead line system, for example by means of a conventional hanger clamp with a suspension cable, or to a structure. The hollow profile 7 is screwed to the hanger clamp by means of the second connection element 9, for example, although alternative connection types, such as adhesive or welded connections, are also possible. The second stop element 15 is according to the design in Fig. 1 as a threaded bolt and the first stop element 14 as a hollow screw. Both stop elements 14, 15 are screwed to the hollow profile 7 and thus form a substantially closed housing which only has an opening to the outside by means of the hollow screw 14, through which opening the rod-shaped profile 6 is guided into the hollow profile or the housing 7. For this purpose, the hollow profile 7 has a corresponding internal thread at each end, into which a stop element 14 or 15 can be screwed. Each of the two stop elements 14, 15, i.e. hollow screw 14 or threaded bolt 15, is thus located partly inside the hollow profile or the housing 7 by means of the respective screw connection, wherein the first stop element or the hollow screw 14 has a lower stop 11 and the second stop element or the threaded bolt 15 has an upper stop 12. When the two stop elements 14, 15 are firmly connected to the hollow profile orWhen the housing 7 is screwed, i.e. is in the intended end position, both the upper stop 12 and the lower stop 11 of the two stop elements 14, 15 are located within the housing 7.

[0028] In order to assemble the connecting device 1 according to the invention, it is necessary that the hollow screw 14 is not yet connected to the hollow profile 7. First, the rod-shaped profile 6, without the guide device 10, is guided through the essentially central opening of the hollow screw 14. The guide device 10 is then screwed to the rod-shaped profile 6, wherein the hollow screw 14 can be moved freely along the rod-shaped profile 6 in this method step. The lower stop 11 of the hollow screw 14 points in the direction of the guide device 10 and, when the hollow screw 14 is moved accordingly in the direction of the guide device 10, touches the latter with the lower stop 11. The rod-shaped profile 6, with the guide device 10 first, is then pushed into the hollow profile or the housing 7. In the last step of assembly, the hollow screw 14 is screwed into the corresponding internal thread provided for this purpose in the hollow profile orof the housing 7, whereby the housing 7 is closed and a substantially closed interior space is created. The upper part of the guide device 10, which is not screwed to the rod-shaped profile 6, is thus located inside the housing 7 and rests on the lower stop 11 due to gravity, without any counterpressure from below. According to the invention, the inner diameter of the housing 7 is only minimally larger than the outer diameter of the guide device 10 of the rod-shaped profile 6 of the connecting device 1, whereby a guide is created by means of which both components 6, 7 can be pushed into or pulled apart in an essentially freely movable manner. In this way, the mutual orcounter-rotating movement of the rod-shaped profile 6 and the housing 7 of the connecting device 1 is ensured in a simple and safe manner, since in particular by means of the guide device 10 a mutual tilting of the two components 6, 7 of the connecting device 1 is prevented.

[0029] The mutual or opposing movement of the two components, the rod-shaped profile 6 with the guide device 10 in the housing 7, is limited upwards, in the direction of the second stop element or the threaded bolt 15, by the upper stop 12, and downwards, in the direction of the first stop element or the hollow screw 14, by the lower stop 11. This creates the adjustment range 13, within which a free, almost resistance-free lifting of a current collector is possible until the guide device 10 stops at the upper stop 12. The adjustment range 13 is shorter than the absolute distance between the lower stop 11 and the upper stop 12, depending on the respective length of the upper part of the guide device 10, which is screwed to the rod-shaped profile 6 and projects into the interior of the housing.

[0030] Fig. 1 shows the position of the guide device 10 of the rod-shaped profile 6 in the housing 7 resting on the lower stop 11. Above the guide device 10 begins the adjustment range 13, which extends upwards to the upper stop 12 of the threaded bolt 15. Fig. 1 thus shows the maximum available lift for a pantograph in the embodiment shown here, which presses against the contact wire 2 from below and thereby deflects the rod-shaped profile 6 upwards toward the second stop 12 of the threaded bolt 15. Due to the upward deflection, the air in the housing 7 is compressed accordingly, thus achieving a spring-like, damping effect. Depending on the requirements, the connecting device 1 according to the invention can be adapted or adjusted accordingly in the individual case, thus ensuring the required lift limitation.

[0031] Fig. For clarification purposes, Fig. 2 shows a perspective view of the first embodiment of the connecting device 1 according to the invention from Fig. 1 from the outside. The guide device 10 of the rod-shaped profile 6 is in the same position as in Fig. 1 within the housing 7 at the lower stop 11 of the first stop element or the hollow screw 14 and is therefore not visible here.

[0032] In Fig. 2 also illustrates the adjustment range 13 and shows how Fig. 1, the maximum available lift for a current collector for the embodiment shown here, which presses against the contact wire 2 from below and thereby deflects the rod-shaped profile 6 by means of the clamp 3 via the first connection element 8 upwards in the direction of the second stop 12, not visible here, of the second stop element or the threaded bolt 15.

[0033] Furthermore, Fig. 2 shows the externally visible second connecting element 9 of the threaded bolt 15, which can be screwed, for example, using a hanger clamp (not shown), and thus connected to a supporting cable (also not shown). Alternatively, the hollow profile 7 can also be connected to other components or a structure of the overhead line system.

[0034] Fig. 3 shows a cross section of a second embodiment of the connecting device 1 according to the invention consisting of a first part 6 and a second part 7, wherein the first part 6 of the connecting device 1 is pushed into the second part 7 of the connecting device and the two parts 6, 7 are movably connected to one another by means of the guide device 10 of the first part 6, which in turn creates the adjustment area 13 in which both components 6, 7 can be pushed into and pulled apart from one another in an essentially freely movable manner.

[0035] The two parts 6, 7 can be one-piece or multi-piece and can, as in the first embodiment according to the Fig. 1 and Fig. 2, again as a hollow profile in all shapes, for example tubular, the first part 6 can also be designed as a solid profile.

[0036] The first part 6 of the connecting device 1 has a guide device 10 at its upper end, i.e. at the end located in the second part 7, and a first connection element 8 at its opposite, lower end, with which the first part 6 is connected to the contact wire 2 by means of a clamp 3. The first part 6 is screwed to the clamp 3 by means of the first connection element 8, although alternative types of connection, such as adhesive or welded connections, are also possible. The first part 6 with the first connection element 8 is preferably designed in one piece, although the first connection element 8 can also be designed as a separate part for detachable connection to the first part 6.

[0037] The embodiment of the connecting device 1 according to the Fig. 3 and Fig. 4 has a pin, in particular a grooved pin, as the guide device 10 of the first part 6 of the connecting device 1, while the second part 7 of the connecting device 1 advantageously has two opposing, lateral slots 5, wherein the guide device or the pin 10 of the first part 6 and thus the entire first part 6 is arranged so as to be guideable along the two slots 5 of the second part 7 of the connecting device 1, or is guided accordingly. Depending on requirements, the second part 7 of the connecting device 1 can also have just a single slot 5 or more than the two slots 5 preferred for manufacturing reasons. Depending on requirements and, for example, depending on the number of slots 5, the pin 10 can also be designed differently, for example with different diameters, lengths, etc.

[0038] The guide device or the pin 10 is arranged transversely, essentially centrally, to the first part 6 of the connecting device 1 and is connected to it, for example fastened, in particular screwed, in a bore in the rod, wherein the length of the pin 10 is greater than or equal to the outer diameter of the second part 7 of the connecting device 1, so that the pin either projects laterally beyond the two opposite slots 5 or is flush with the outer dimension of the second part 7 on both sides.

[0039] The lower end of the two slots 5 of the second part 7 of the connecting device 1 is designed as a first stop element 14 with the lower stop 11 and the upper end of the two slots 5 of the second part 7 of the connecting device 1 is designed as a second stop element 15 with the upper stop 12 for the pin 10 of the first part 6 of the connecting device 1.

[0040] By means of the pin 10, the two components 6, 7 are essentially freely movable and can be pushed into or pulled apart accordingly. In this way, the mutual or opposing movement of the two components 6, 7 of the connecting device 1 is ensured in a simple and secure manner.

[0041] The second part 7 of the connecting device 1 further comprises, in the region of the end above the second stop element 15, a second connection element 9, with which the second part 7 is connected to further components of the overhead line system, for example, by means of a conventional hanger clamp to a supporting cable, or to a structure. The second part 7 is screwed to the hanger clamp by means of the second connection element 9, for example, although alternative connection types, such as adhesive or welded connections, are also possible. The second connection element 9 can be connected to the second part 7 as a separate component, for example screwed, or can be integrated into the second part 7 as a single piece.

[0042] According to the invention, the inner diameter of the second part 7 is only minimally larger than the outer diameter of the first part 6 of the connecting device 1.

[0043] The mutual or opposing movement of the two components 6, 7 is limited upwards by the second stop element 15 with the upper stop 12, and downwards by the first stop element 14 with the lower stop 11. This in turn creates an adjustment range 13 within which a free, resistance-free lifting of a current collector is possible until the guide device or pin 10 stops at the upper stop 12. Depending on the respective diameter of the pin 10, the adjustment range 13 is shorter than the absolute distance between the lower stop 11 and the upper stop 12.

[0044] When a pantograph travels over the contact wire 2, it is raised, and the effective weight force on the connecting device 1 decreases until the first part 6 is raised and pushed into the second part 7. Thus, the pantograph can be lifted freely if the length of the adjustment range 13 is selected sufficiently large. If the lift exceeds the possible adjustment range 13, the upper stop 12 limits the lift because the pin 10 transfers the compressive force to the second part 7 and further into the supporting structure or connected terminals.

[0045] Fig. 3 shows the position of the guide device or the pin 10 of the first part 6 at the upper stop 12. The adjustment range 13, which extends between the lower 11 and upper stop 12, is thus as shown in Fig. 3 is exhausted, i.e., a current collector (not shown here) pressing against the contact wire 2 from below has already deflected the first part 6 upwards to the second stop 12 and thus completely exhausted the available lift. Depending on the specifications, the connecting device 1 according to the invention can be adapted or adjusted accordingly in the individual case, thus ensuring the required lift limitation.

[0046] Fig. 4 shows a perspective view of the second embodiment of the connecting device 1 according to the invention from Fig. 3 from the outside. The guide device or pin 10 of the first part 6 is in the same position as in Fig. 3 at the upper stop 12 of the second part 7.

[0047] Through the perspective representation in Fig. 4 the adjustment range 13 is particularly highlighted and shows, as in Fig. 3, the maximum available lift between the lower 11 and upper stop 12 for a current collector, which presses against the contact wire 2 from below and has thereby already deflected the first part 6 by means of the clamp 3 via the first connection element 8 upwards to the upper stop 12, for the embodiment shown here.

[0048] Furthermore, Fig. 4 again shows the second connecting element 9, which can be screwed, for example, using a hanger clamp (not shown), and thus connected to a supporting cable (also not shown). Alternatively, the second part 7 can also be connected to other components or a structure of the overhead line system.

[0049] The embodiments of the connecting device 1 according to the invention according to the Fig. 1 to 4 can also be easily designed in such a way that the geometry of the first part 6 and the second part 7 are exchanged. In these variants of the Fig. In the embodiments shown and described in Figures 1 to 4, the second connection element 9 (instead of the first connection element 8) is then connected directly to the terminal 3 and, by means of this, indirectly to the contact wire 2. The first connection element 8 (instead of the second connection element 9) is then accordingly connected to further components of the overhead line system, for example, directly to a conventional hanger clamp and, by means of this, indirectly to a suspension cable or a structure. All of the above-mentioned further explanations of the embodiments in the Fig.1 to 4 are, without exception, transferable mutatis mutandis to the variants of the embodiments of the connecting device 1 according to the invention, in which the first part 6 and the second part 7 are exchanged in their geometry, and thus also apply without restriction to these variants of the connecting device 1 according to the invention.

[0050] The connecting device 1 according to the invention is in no way limited to the embodiments described and shown herein so far; rather, all possible further useful embodiments are also encompassed, in particular embodiments in which, for example, at least one spring, for example a compression spring, is arranged inside the second part 7 of the connecting device 1, for example at the upper end of the second part 7. The spring can expediently be arranged, for example, in the adjustment area 13 of the connecting device 1. Hard impact on the upper stop 12 or lower stop 11 of the connecting device 1 can be avoided if the length of the spring arranged in the adjustment area 13 is less than the free distance in the adjustment area 13.The spring constant of the compression spring can be selected such that it is stiffer than the elasticity of the contact wire 2, so that the uplift is initially gently limited before the spring is fully compressed and becomes a hard limiter. Embodiments are also possible in which the interior of the second part 7 of the connecting device 1 is completely filled with at least one spring, so that the first part 6 with the connection point to the contact wire 2 is already preloaded depending on the spring constant. If the spring constant is selected such that it is stiffer than the elasticity of the contact wire 2 at this point without a connected component, the elasticity at this point is reduced and thus the uplift is reduced before a stop point is reached. The prerequisite for this is the presence of a corresponding supporting structure that can divert the compressive force of a pantograph against the respective component.Only when the spring is fully compressed does a hard stop occur again.

Claims

[1] Connecting device (1) of an overhead line system, wherein the connecting device (1) connects at least one contact wire (2) of the overhead line system and at least one further component of the overhead line system or a structure, characterized by that the connecting device (1) has at least two parts (6, 7) which can be displaced relative to one another, wherein the first part (6) is connected at least indirectly to the contact wire (2) of the overhead line system and the second part (7) is connected at least indirectly to the at least one further component of the overhead line system or the structure. [2] Connecting device (1) according to claim 1, characterized by that the first part (6) of the connecting device (1) is connected to the at least one contact wire (2) of the overhead line system by means of a terminal (3). [3] Connecting device (1) according to claim 1, characterized bythat the at least one further component of the overhead line system is a supporting cable, wherein the second part (7) of the connecting device (1) is connected to the at least one supporting cable of the overhead line system by means of a hanger clamp. [4] Connecting device (1) according to claim 1 or 2, characterized by that the first part (6) of the connecting device (1) is designed as a rod-shaped profile, wherein the first part (6) of the connecting device (1) has a guide device (10) for connection to the second part (7) of the connecting device (1) in the region of one end and a first connection element (8) in the region of the opposite end, wherein the first connection element (8) can be connected to the clamp (3). [5] Connecting device (1) according to claim 4, characterized by that the rod-shaped profile (6) can be designed as a solid profile or as a hollow profile. [6] Connecting device (1) according to claim 4 or 5, characterized bythat the first part (6) of the connecting device (1) can be designed in several parts. [7] Connecting device (1) according to claim 1 or 3, characterized by that the second part (7) of the connecting device (1) is designed as a hollow profile, wherein the second part (7) of the connecting device (1) has a first stop element (14) in the region of one end and a second stop element (15) with a second connection element (9) in the region of the opposite end, wherein the second connection element (9) can be connected to the hanger clamp. [8] Connecting device (1) according to claim 7, characterized by that the second part (7) of the connecting device (1) can be designed in several parts. [9] Connecting device (1) according to one of the preceding claims, characterized by that the first part (6) and the second part (7) of the connecting device (1) are designed to be displaceable into one another. [10] Connecting device (1) according to one of the preceding claims, characterized by that the first part (6) is movably connected to the second part (7) of the connecting device (1) by means of the guide device (10). [11] Connecting device (1) according to one of the preceding claims, characterized by that the first stop element (14) of the second part (7) of the connecting device (1) is designed as an upper stop (12) for the first part (6) of the connecting device (1) and the second stop element (14) of the second part (7) of the connecting device (1) is designed as a lower stop (11) for the first part (6) of the connecting device (1). [12] Connecting device (1) according to one of the preceding claims characterized bythat the connecting device (1) has an adjustment range (13) between the lower (11) and the upper stop (12), in which the first part (6) of the connecting device (1) is displaceably arranged in the second part (7) of the connecting device (1). [13] Connecting device (1) according to claim 12, characterized by that the adjustment range (13) is limited on one side by the stop of the guide device (10) at the upper stop (12) and on the opposite side by the stop of the guide device (10) at the lower stop (11). [14] Overhead line system with at least one connecting device (1) according to one of claims 1 to 13.

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