A system for guiding pipelines in multi-car units, especially in articulated buses.

Abstract

A system (7) for guiding pipelines in a multi-section vehicle having two (A) pivotally connected car bodies (1; 2) including a pipeline guiding device for guiding at least one supply pipeline in a guiding plane (E). The pipeline guiding device has two flexible longitudinal sections (11, 12) together with links (20) articulated to each other, a steering section (13) and two end fasteners (14A, 14B) for fastening to one car body and the other car body (1, 2). The first and second longitudinal sections (11, 12) each include links (20) in a first sub-section (11A, 12A) at their ends, which are pivotally connected relative to each other in at least one direction, the first sub-section extending from the corresponding end fasteners (14A; 14B); and each includes links (20) in a second sub-section (11B, 12B) in a second direction, which are pivotally connected relative to each other, the second sub-section transitioning into the steering section (13). A multi-section vehicle, particularly an articulated bus, having two pivotally connected car bodies, including such a system.

Description

Technical Field

[0001] This invention generally relates to a system for guiding pipelines between two pivotally connected car bodies in a multi-car fleet. The multi-car fleet is, for example, an articulated bus or rail vehicle, such as a low-floor tram, a tram, or the like. The invention relates to such a system, particularly for articulated buses, for guiding at least one supply pipeline, especially an electrical supply pipeline spanning the intermediate space between two successive car bodies. Background Technology

[0002] Systems of this type include a pipeline guiding device having a flexible first longitudinal section, a flexible second longitudinal section, and a flexible or non-flexible steering section between the two longitudinal sections. Furthermore, systems of this type include suitable end fasteners for end-to-end fastening of the longitudinal sections to a corresponding one of the two vehicle bodies. Such systems of this type are known in the prior art, for example, from patents EP 3 386 832 B1 or EP 3 718 795 B1.

[0003] The solution in EP 3 386 832 B1 is specifically designated for use in rail vehicles. It proposes that the pipeline guiding device be constructed as an energy guiding chain consisting of mechanically coupled links that hold or receive the pipeline to be guided. According to EP 3 386 832 B1, the links are pivotable relative to each other in the guiding plane, i.e., by means of pivoting hinges of the links that are substantially perpendicular to the guiding plane and have relatively low flexibility in the plane perpendicular to the guiding plane. Various structural types of energy guiding chains are known as pipeline guiding devices, each comprising multiple links hinged together.

[0004] The solution in EP 3 386 832 B1 can be implemented, for example, in a manner known per se using a conventional energy steering chain arranged laterally. Based on the chosen arrangement, this solution is not directly applicable to articulated buses.

[0005] However, the solution in EP 3 718 795 B1 is specifically designated for articulated buses. This solution proposes a cable guide with a leaf spring that curves from one car body to the next. The cable hose is movably supported by a retainer on this leaf spring. While this solution is indeed applicable to different vehicle types in principle, it only provides limited good protection for the cable to be guided. The leaf springs used must be designed separately according to the given requirements. Summary of the Invention

[0006] Therefore, the primary objective of this invention is to provide a system for guiding pipelines in multi-carriage vehicles, which provides good protection for the pipelines to be guided while being easily adaptable, or rather, easily adaptable to the requirements of different vehicle types.

[0007] This primary task is addressed by a system for pipeline guidance having the features of claim 1.

[0008] The proposed system includes a pipeline guiding device for guiding at least one supply pipeline in a guiding plane, wherein the pipeline guiding device has a flexible first longitudinal section, a flexible second longitudinal section, and a turning section between the two longitudinal sections. Here, at least the flexible first and second longitudinal sections each include a plurality of links of an energy guiding chain hinged to each other. The pipeline guiding device may be constructed solely of energy guiding chains in the flexible longitudinal sections, or it may be constructed continuously of one or more different types of energy guiding chains over the two flexible longitudinal sections and the turning section.

[0009] The proposed system also includes a first end fastener for securing the end of the first longitudinal section to one vehicle body, and a second end fastener for securing the end of the second longitudinal section to another vehicle body. The end fasteners may have any suitable structural form, but are preferably configured to be very simple, especially implemented so that there are no moving parts during intended operation.

[0010] The proposed system is characterized in that the flexible first and second longitudinal sections each include links in a first sub-section at the end side that are pivotally connected relative to each other in at least a first direction, particularly about a first axis parallel to the guide plane, the first sub-section extending from a corresponding end fastener; and the flexible first and second longitudinal sections each include links in a second sub-section that are pivotally connected relative to each other in at least another direction, particularly about a second axis perpendicular to the guide plane, the second sub-section transitioning into and / or connecting to a steering section.

[0011] In other words, the proposed system is characterized by a flexible longitudinal section in which the pipeline guide has different degrees of freedom and / or different flexibility and / or different stiffness in its longitudinally extending local areas or sub-sections. In particular, at the end-side sub-section to which it will be fastened to the vehicle body, a different or higher degree of freedom is provided compared to the second sub-section subsequently transitioning to and / or connecting to the steering section. In this second sub-section, the pipeline guide can be implemented to be more resistant to bending to counteract sag due to gravity, i.e., sag from the guide plane, which preferably corresponds to a plane perpendicular to the pivot axis of the vehicle body.

[0012] Preferably, the first longitudinal segment has a different or higher degree of freedom in its first sub-segment than in its second sub-segment, and the second longitudinal segment has a different or higher degree of freedom in its first sub-segment than in its second sub-segment. This can be achieved, for example, by appropriately selecting the links in the sub-segment with respect to their pivotable connection, and / or by appropriately adjusting their pivotability by one or more additional members.

[0013] Preferably, the first sub-section is shorter than the second sub-section in the longitudinal direction or orientation of the pipeline guiding device.

[0014] Preferably, the second sub-segments of the first and second flexible longitudinal sections each have reduced flexibility or increased bending stiffness relative to the first sub-segment, particularly bending stiffness to prevent sagging or bending, and / or are preferably at least largely cantilevered. This counteracts sagging from the guide plane, or the plane perpendicular to the vehicle body pivot axis. This region-specific difference in flexibility or bending stiffness can be achieved in various ways, for example, by means of the preload of an energy-guided chain with appropriate structural configuration.

[0015] In a preferred configuration, the flexible first and second longitudinal sections are respectively constructed on the first and second sub-sections by links articulated together by an energy guiding chain, which is capable of offsetting in at least two mutually perpendicular directions. Particularly preferred is the use of an energy guiding chain with spatial offset, which is composed of links connected or linked in pairs in a manner that allows them to pivot relative to each other in at least two directions, particularly in a gimbal-like or ball-joint manner.

[0016] When using this energy guiding chain, it is advantageous to achieve different degrees of flexibility or bending stiffness in different regions by providing spring-elastic support elements in the second sub-sections, which work load-bearingly with the energy guiding chain within the guiding plane. No such support elements are provided in the first sub-section, thus allowing the first sub-section to have different, and particularly higher, flexibility and / or different, and particularly higher, degrees of freedom.

[0017] Due to the spring-elastic support elements, the second sub-sections can be at least mostly cantilevered, that is, the areas that cross the intermediate space between the vehicle bodies without support.

[0018] Preferably, the spring-elastic support elements are received or arranged within the energy guiding chain that is offset in the energy space.

[0019] The spring-elastic support element is preferably selected such that it—especially when it deviates due to the pivoting motion of the connected vehicle body—causes the energy guide chain to automatically return to its original position, particularly to a position in the second sub-section where it is at least substantially straight or the energy guide chain is elongated.

[0020] The use of spring-loaded support elements creates a mechanically advantageous pipeline guide that is more stable or vibrates less during operation, resulting in less wear and lower noise.

[0021] In a suitable structural configuration, each spring-elastic support element is implemented as a rod-shaped spring element or a leaf spring-shaped spring element, which is arranged to extend in the longitudinal direction of the energy guide chain and is specifically sized such that it can be arranged within the energy guide chain.

[0022] In a preferred configuration, the system has a support bracket for the steering section, which approximately supports the middle area of ​​the pipeline guide device or energy guide chain.

[0023] The support bracket can be used to support or be supported on or in turning sections between flexible longitudinal sections, especially to be fixedly or movably supported.

[0024] At this load-bearing bracket, the spring-elastic support element can be held unilaterally or cantilevered. In suitable flat structural forms, the load-bearing bracket is implemented as a surface and is generally V-shaped or U-shaped, for example, as a sheet metal component.

[0025] The turning sections between the flexible longitudinal sections of the pipeline guide are preferably arranged in at least segmental sections with a predefined or pre-given direction, and are in particular rigidly fixed. Support brackets are particularly useful for this fixing. In this configuration, a linear guide is also preferably provided, by means of which the turning sections of the pipeline guide can be movably secured to the vehicle's support frame. Gravity-resistant support is then provided in this intermediate region, for example, on a component of a multi-section vehicle.

[0026] To simplify the structure, it is particularly preferred that the pipeline guiding device has at least one deflectable energy guiding chain that extends at least substantially or completely coherently from a first longitudinal section through a turning section to a second longitudinal section, and comprises a plurality of chain links articulated to each other.

[0027] Here, the chain can pivot relative to each other in at least two substantially perpendicular directions, for example according to the chain structure type in WO94 / 18735 A1, or according to the chain structure type in WO 00 / 63583 A1.

[0028] Particularly preferred is the use of an energy-guided chain that can be spatially offset, which has been validated in industrial robot applications, for example, according to the chain structure type in WO 2004 / 093279 A1.

[0029] Regardless of the degree of freedom between the segments, preferably, the hinged links are arranged sequentially in the longitudinal direction of the energy guiding chain, preferably open at the ends, and preferably formed by means of radially outer sheath elements to form at least one guiding channel for the supply line.

[0030] The link may have radial tabs, which at least include through openings for a support element for spring retraction.

[0031] In a preferred energy guiding chain, such as the chain structure according to WO 2004 / 093279 A1, the chain links form hinged connections that receive tension. These hinged connections are arranged within a sheath element and chain the chain links together longitudinally, preferably in a ball-joint manner. Such chain links can form substantially circular, radially outward-facing sheaths, thereby preventing jamming on other components within the vehicle body's intermediate space.

[0032] The links may each have a sheath element that is at least largely closed in the circumferential direction, wherein the links engage with each other in successive sheath elements in the longitudinal direction to form a longitudinally closed energy guiding chain. This provides improved protection against external influences. However, links that are partially open on the circumferential side can also be used, for example, to facilitate pipeline replacement when maintenance is required.

[0033] Preferably, an energy guiding chain is used, wherein the links of the chain are made into plastic parts, or preferably integrally made into injection-molded plastic parts.

[0034] To provide a defined orientation around the turning section, the pipeline guide may include multiple clamp-like or clip-like fastening elements by which the energy guide chain can be secured or fixed to a support frame (if a continuous energy guide chain is used). Alternatively, the pipeline guide may have at least one offset energy guide chain in each of the first and second longitudinal sections, connected in the turning section by a rigid pipeline guide, meaning that an energy guide chain is not required in the turning section.

[0035] If it is necessary to guide a larger number of pipelines or pipelines with larger cross-sections, two or more energy guiding chains, preferably arranged vertically stacked, can be used in the pipeline guiding device. These energy guiding chains can be composed of at least most or completely continuous pivotally connected links from the first longitudinal section to the second longitudinal section.

[0036] The supply line should not be considered as part of the system itself for line guidance. However, in a given application or after installation on a vehicle, the system does include at least one supply line, preferably multiple supply lines of different types, which are guided within the line guidance device, particularly within the energy guidance chain, wherein at least one high-voltage electrical line is preferably provided.

[0037] The invention also relates to a multi-section vehicle, particularly an articulated bus, having two pivotally connected car bodies, including a system according to the invention for guiding pipelines between the car bodies. Here, a first end fastener secures the end of a first longitudinal section to one of the two car bodies, and a second end fastener secures the end of a second longitudinal section to the other of the two car bodies. A support frame may be provided on which the steering section of the pipeline guiding device, particularly a load-bearing bracket, is supported. The car bodies are typically connected via at least one bellows. In application, the pipeline guiding device is preferably arranged outside the bellows, particularly outside the inner bellows, and especially vertically above the bellows.

[0038] This invention is particularly applicable to articulated buses with two movable bodies, especially articulated buses in which the rear body can rotate relative to the front body about a substantially vertical axis of rotation, particularly within an angle range of at least 50°, and can pivot about a substantially horizontal pitch axis, particularly within an angle range of at least 20°. The system according to the invention can easily traverse this range of motion and guide and protect pipelines therein.

[0039] The present invention also relates to the application of a system for guiding at least one electrical supply line between two car bodies in a multi-carriage vehicle, particularly for guiding high-voltage lines in an electric articulated bus. Attached Figure Description

[0040] Other details, features, and advantages of the invention will become apparent from the following description of preferred embodiments based on the accompanying drawings, which are not intended to be limiting. Figure 1A-1C Perspective view of a preferred embodiment of a system for guiding supply lines in an articulated bus. Figure 1A Top view () Figure 1B ) and side view ( Figure 1C ); Figure 2 From Figure 1A-1C The top view of the system, but without the energy guide chain, is used to show the end fasteners on the end side for securing the pipeline guide device or energy guide chain to the vehicle body, and the load-bearing bracket in the middle area of ​​the intermediate space between the vehicle bodies. Figures 3A-3CFrom Figure 1A-1B Top view of a partial view of the system ( Figure 3A ) and vertical longitudinal section view along section line IIIB-IIIB ( Figure 3B ), used to display for Figure 1A-1C The system's energy-guiding chain, with its spring-elastic support elements within the energy space offset, and the end-face view of the chain links ( Figure 3C ); Figure 4 A cross-sectional view of the energy guiding chain with a spring-loaded support element as an alternative embodiment, showing energy space offset; and Figures 5A-5D A view of the different pivot and pitch angle positions of two articulated car bodies of a multi-section vehicle, wherein the routing of the system for guiding pipelines according to the invention is schematically shown by means of dashed lines. Detailed Implementation

[0041] In Figures 1-2, the front body 1 and the rear body 2 are shown only partially by means of a known articulated system for coupling the actual vehicle body. The bodies 1 and 2 are, for example, components of an electric articulated bus (not shown) and are connected relative to each other by an articulated rotary hinge 3, shown only schematically, in a manner capable of pivoting about a vertical pivot axis A. The articulated system, not fully shown, also includes an articulated front bearing 4 for the pitch movement of the bodies 1 and 2 relative to each other about a horizontal pitch axis B, see also... Figures 5A-5D The articulated system itself is not the subject of this invention and is therefore not described in detail.

[0042] However, what is important for this invention is that... Figures 5A-5D The diagram illustrates the relative movements required between car bodies 1 and 2 about the vertical pivot axis A and the horizontal pitch axis B, based on their outward pivoting relative positions. In modern multi-section vehicles (e.g., articulated buses), supply lines are laid between the individual car bodies. Supply lines not shown in detail can be of various kinds, and in particular include electrical supply lines, such as high-voltage lines in the case of electric buses or DC lines for coupling batteries arranged on the roof side, but also include fluid media lines, such as hoses for air conditioning.

[0043] Figure 1 to Figure 4 A particularly preferred embodiment of a system for guiding supply lines (not shown) within an intermediate space between pivotally connected vehicle bodies 1 and 2 is shown.

[0044] In a particularly preferred embodiment, system 7 includes at least one or more energy guide chains 10 with energy space offset as a pipeline guiding device for guiding the supply pipeline. These energy guide chains can have a structural form known per se, for example, according to WO 2004 / 093279 A1. Such energy guide chains 10 are known, particularly for applications involving industrial robots. The energy guide chains 10 are used to guide the supply pipeline protectively within the internal channel, preventing unwanted knotting of the pipeline (not shown) and maintaining a minimum bending radius at all times.

[0045] Here, each of the two energy guiding chains 10, when viewed along the directional direction, is arranged such that it has a flexible first longitudinal segment 11, a flexible second longitudinal segment 12, and a middle turning segment 13 connecting the two longitudinal segments 11 and 12. Here, each energy guiding chain 10 is positioned in accordance with... Figure 1B The plane extends essentially horizontally within the guide plane, that is, perpendicular to the pivot axis of vehicle bodies 1 and 2, but can move flexibly from this position according to the relative movement of vehicle bodies 1 and 2, for example, based on Figures 5A-5D As shown. From Figure 1B-1C It can be concluded that the arrangement of the energy guiding chain is basically symmetrical with respect to the vertical central plane of the pivot axis A that passes through the articulated rotating hinge 3 between the vehicle bodies 1 and 2.

[0046] The respective ends of the longitudinal sections 11 and 12 are fixedly assembled to the respective vehicle bodies 1 and 2 by means of end fasteners 14A and 14B. For this purpose, the end fasteners 14A and 14B may be, for example, composed of an arc-shaped support plate 14C and a known fastening clamp 15 for the energy chain for energy space displacement.

[0047] Figure 2 A support bracket 16 in the form of a generally U-shaped support plate is also shown, on which a turning section 13 is arranged and supported. In the turning section 13, the energy guide chain 10 is secured to the support bracket 16 with a predetermined generally U-shaped or Lambda-shaped orientation by means of a plurality of fastening clamps 15 arranged sequentially in the directional direction. The support bracket 16 is supported by a linear guide 17. Figure 1A The articulated system, not fully shown, is movably supported on the support frame 5 so that it can move within the nominal center plane between the vehicle bodies 1 and 2.

[0048] As explained below and in Figures 5A-5DAs shown, the energy guiding chain 10 is arranged and equipped such that the flexible first longitudinal segment 11 and the flexible second longitudinal segment 12 are connected relative to each other in a manner that allows them to pivot at least about a first axis parallel to the guiding plane E in the first sub-segments 11A and 12A at their ends. This is ensured in any case when an energy guiding chain 10 with an energy space offset is preferably used.

[0049] Furthermore, the energy guiding chain 10 is arranged and equipped, or configured, such that the flexible longitudinal sections 11 and 12, respectively, within another second sub-section 11B and 12B (which transitions into or at least connects to the turning section 13), include links connected in another direction, i.e., about a second axis perpendicular to the guiding plane E, in a manner that allows them to pivot relative to each other. This is also inherently guaranteed when using an energy guiding chain with energy space offset.

[0050] In a preferred embodiment, the second sub-segments 11B and 12B of the energy guiding chain 10 have significantly reduced flexibility or significantly increased bending stiffness relative to the first sub-segments 11A and 12A, respectively, particularly in terms of bending stiffness that would otherwise sag downwards from the guiding plane E. Figure 1A-1C and Figure 2 As the comparison shows, the energy guiding chain 10 is also essentially cantilevered in the free space between the end fasteners 14A, 14B and the support bracket 16.

[0051] In a preferred embodiment, this is achieved by having each of the energy guiding chains 10 having at least one spring-elastic support element, in this case, in the form of a spring rod 18, such as... Figure 3B Visibly positioned inside the energy guiding chain 10 and extending through the chain link 20. Alternatively, two spring rods 18 can be vertically stacked one on top of the other. Figure 3B ).

[0052] The use of a spring rod 18, which acts in conjunction with the energy guide chain 10 to provide support and increase stiffness, is inherently known, for example, as described in WO 01 / 09532 A1, and therefore will only be briefly discussed herein. The spring rod 18 is positioned along a portion of its length, specifically in the second sub-segments 11B and 12B of the two longitudinal sections 11 and 12, to ensure bending stiffness against bending or sagging of the energy guide chain 10 in the cantilever region. Simultaneously, the spring rod enables spontaneous return to its original position and relatively symmetrical bending behavior of the energy guide chain 11 with respect to the pivoting motion of the vehicle bodies 1 and 2, see [reference needed]. Figures 5A-5BThe direction of the movement is as follows. Here, based on the reinforcement by threaded rod 19 for rigidly connecting multiple links 20 during the transition to the steering section 13, the spring rod, due to its tapered shape, is fastened by being inserted into the corresponding opening of the link 20. By means of multiple fastening clamps 15, this sub-section reinforced by threaded rod 19 is fixedly mounted on the support bracket 16 during the transition between the second sub-sections 11B, 12B and the steering section 13. Accordingly, the spring-resilient spring rod 18 is cantilevered on one side and fastened to the support bracket 16 and, via the support bracket, to the intermediate frame 5.

[0053] As in Figure 3B As is best seen in the vertical longitudinal section, the spring rod 18, inserted into the energy guide chain 10 as a spring-elastic support element, defines the length of the second sub-segments 11B, 12B of the flexible longitudinal sections 11, 12 of the energy guide chain 10. The length of the spring rod 18 is selected accordingly. Further from... Figure 3B As can be seen in the vertical longitudinal section, the remaining first sub-sections 11A and 11B are implemented without the spring bar 18 and correspondingly have multiple links 20 that can pivot freely relative to each other in space, for example, about 4-5 pivotable links. That is, the first sub-sections 11A and 11B have lower stiffness or higher flexibility than the longer second sub-sections reinforced with the spring bar 18. This ensures advantageous mobility of the pipeline guide device in the end-side region. The energy guiding chain 10 is reinforced in the restricted longitudinal sections 11B and 12B by the spring bar 18 and further gains advantageous return function or cantilever configuration.

[0054] The two energy guide chains 10 are preferably implemented with identical structures, and in particular, each is equipped with a vertically stacked spring rod. The two energy guide chains 10 can be stacked vertically together and secured to end fasteners 14A, 14B by means of fastening clamps 15 or other suitable fastening devices, and also secured to the support bracket 16.

[0055] As Figures 3A-3C Alternatives to the embodiments in the middle, Figure 4 A spring-resilient support element in the form of a leaf spring 18' is shown, which extends longitudinally through a guide channel inside the link 20 of the energy guiding chain 10. Other types and arrangements of spring-resilient support elements, such as those on the outside of the energy guiding chain 10, are also feasible.

[0056] Instead of using the continuous portion of the energy guide chain 10 as the reversing region 13, a rigid guide portion is provided there, for example in the form of a curved tube or a suspended and fastened supply line, which is also within the scope of the present invention.

[0057] However, a particularly preferred form is a pipeline guide in the form of at least one continuous energy guide chain 10 with links 20 that can pivot spatially relative to each other, as shown in Figures 1-4. The structural form of such an energy guide chain 10 is known in nature, for example by WO 2004 / 093279 A1, the teachings of which are incorporated herein by reference in full, and are available, for example, from the applicant (igus GmbH, D-51147 Köln) under the trade name triflex® R for robotic applications.

[0058] This energy guiding chain 10 has links 20 that are hinged to each other. These links are successively linked to each other in the longitudinal direction by means of hinge elements 21A and 21B, which form a ball joint connection between every two successive links 20. See [link to previous section] Figure 3B With the aid of conjugate hinge elements 21A and 21B, the links 20 are connected in pairs via ball joints and can pivot in space. Compared to other energy guiding chains that can spatially deflect energy, the connection formed by hinge elements 21A and 21B according to WO 2004 / 093279 A1 is particularly robust against tensile forces and can still be loosened as needed, for example, for maintenance or inspection purposes.

[0059] Alternatively, it is also feasible to use universal joint hinges between the links 20 so that these links can pivot relative to each other in at least two substantially perpendicular directions.

[0060] Link 20 has an outer sheath element 22, which is substantially circular in cross-section. Figure 3C , Figure 4 Furthermore, they mesh with each other in the longitudinal direction to form a substantially closed outer sheath consisting of sheath elements 22, which is hose-like or tubular, to protect the pipeline (not shown) so that the pipeline in system 7 is also protected from external influences. Hinged elements 21A and 21B are also protected within the sheath elements 22 and form the neutral axis of the energy guiding chain 10 because they are linked in pairs in the longitudinal direction.

[0061] from Figure 3C and Figure 4As can be seen, the arc-shaped sheath element 22 forms an internal guide channel 23 for supplying the pipeline (not shown). The sheath element 22 is connected to the central portion 24 via radial tabs 25, and hinge elements 21A and 21B are provided at the ends of the central portion. Preferably, the links 20 are made of plastic, preferably one-piece injection-molded plastic parts, for example, according to the structural type of WO 2004 / 093279 A1. The links 20 made of plastic are lightweight and avoid conductive parts on the energy guiding chain, which provides an advantage, especially when guiding high-voltage pipelines.

[0062] In a preferred embodiment of the energy guiding chain 10 for system 7, the chain link 20 also has a through opening 26 in at least one of the radial tabs 25, such that the spring-elastic spring rod 18 (as from...) serving as a support element... Figures 3A-3C (Visible) The energy guiding chain 10 can be guided through the link 20 in the longitudinal direction without obstructing the guiding channel 23 and the conduit guided therein. The spring rod 18, which is the spring elasticity, is preferably a round rod with a tapered tip, for example, using a suitable fiber composite material.

[0063] In the illustrated embodiment, to receive multiple supply lines, two vertically stacked energy guiding chains 10 with substantially identical structures are arranged and guided, see [reference]. Figure 1A-1C However, the use of a single energy guiding chain 10 with a suitable diameter is also within the scope of this invention.

[0064] Furthermore, other types of energy guiding chains with different pivoting directions for the first sub-segments 11A, 12A and the second sub-segments 11B, 12B can also be used. For example, energy guiding chains of the chain structure type according to WO 94 / 18735 A1 or the chain structure type according to WO00 / 63583 A1 (both from the applicant) are also considered, and their teachings are incorporated herein by reference to the full extent. Even in such chains with a rectangular cross-section, the spring rod 18 can be readily used, for example, according to the structure type according to WO 01 / 09532 A1, and its teachings are also incorporated herein by reference to the full extent.

[0065] Figures 5A-5D This demonstrates typical movement between car bodies 1 and 2 in an articulated bus. The rear car body 2 can rotate relative to the front car body 1 about a substantially vertical pivot axis A, i.e., in... Figure 5A The position with the maximum leftward pivot (viewed from the direction of travel) and Figure 5BIt can rotate between positions with maximum rightward pivot (viewed in the direction of travel). The range of pivot between these end positions typically has an angular range of at least 50°. Furthermore, the rear body 2 can pivot relative to the front body about a substantially horizontal pitch axis B, particularly within an angular range of at least 20°. Figure 5C and Figure 5D As shown by comparing the positions of the two ends of the pitch motion.

[0066] The proposed system 7 for pipeline guidance is modularly adaptable to various requirements, especially the pivoting range. Due to the flexibility and adjustable bendability or degrees of freedom of the energy steering chain 10, it also allows for easy adaptation to other application requirements. System 7 allows for a variety of pipeline assembly configurations, as well as compact arrangements above or below the bellows in articulated systems of multi-section vehicles. The energy steering chain 10, proposed herein as a preferred embodiment, is proven robust and provides a long service life in addition to significant mechanical protection of the pipeline.

[0067] List of reference numerals 1 and 2 vehicle bodies 3. Articulated rotary hinge (for coupling of pivotable motion) 4. Articulated front bearing (for pitch motion) 5. Support frame (of the hinged system) 7. Systems for pipeline guidance 10 Energy Guiding Chains 11A and 11B are the first longitudinal flexible sections. 12A and 12B Flexible second longitudinal sections 13 Turning Section 14A, 14B End Fasteners 14C bearing plate 15 Fastening clamps 16 Support brackets 17 Linear Guide Section 18" Spring bar; 18' Leaf spring / Spring band 19 Threaded rod 20 (energy guiding chain) links 21A, 21B Hinged elements (ball joint connection) 22 Sheath components 23 Guiding Channels (in the energy guiding chain) 24 Central section; 25 Splice; 26 Through-hole opening A. Pivot axis; B. Pitch axis E Guide plane

Claims

1. A system (7) for guiding pipelines in multi-section vehicles, particularly articulated buses, said multi-section vehicles having two bodies (1; 2) pivotally connected about a pivot axis (A), wherein, At least one electrical supply line spans the space between the vehicle bodies (1; 2), and the system (7) includes: - A pipeline guiding device for guiding at least one supply pipeline in a guiding plane (E), wherein the pipeline guiding device has a flexible first longitudinal section (11), a flexible second longitudinal section (12) and a turning section (13) between the two longitudinal sections, wherein at least the flexible first longitudinal section and the second longitudinal section each include a plurality of mutually hinged links (20) of an energy guiding chain (10). - A first end fastener (14A) for fastening the end of the first longitudinal section (11) to a vehicle body (1), and a second end fastener (14B) for fastening the end of the second longitudinal section (12) to another vehicle body (2). Its features are, The flexible first longitudinal section (11) and the flexible second longitudinal section (12) each include links (20) in at least one direction in a first sub-section (11A, 12A) at their ends, which are pivotally connected relative to each other. The first sub-sections extend from corresponding end fasteners (14A; 14B), and... The flexible first longitudinal section (11) and the flexible second longitudinal section (12) each include a link (20) in the second sub-section (11B, 12B) that is pivotally connected relative to each other in at least one other direction, the second sub-section transitioning into and / or connecting to the steering section (13).

2. The system (7) for pipeline guidance according to claim 1, characterized in that, The first longitudinal segment (11) has different or higher degrees of freedom in its first sub-segment than in its second sub-segment, and The second longitudinal segment (12) has different or higher degrees of freedom in its first sub-segment than in its second sub-segment.

3. The system (7) for pipeline guidance according to claim 1 or 2, characterized in that, The links (20) in the first sub-segment are connected in a manner that allows them to pivot relative to each other at least about a first axis, and in particular about an axis parallel to the guide plane (E).

4. The system (7) for pipeline guidance according to claim 3, characterized in that, The links (20) in the second sub-segment are connected in a manner that allows them to pivot relative to each other at least about a second axis, wherein the second axis extends transversely to the first axis and, in particular, perpendicularly to the guide plane (E).

5. The system (7) for pipeline guidance according to any one of the preceding claims, characterized in that, The second sub-segments (11B, 12B) of the first and second longitudinal segments (11; 12) of the flexible first longitudinal segment and the second longitudinal segment (11; 12) respectively have reduced flexibility or increased bending stiffness relative to the first sub-segments (11A, 12A), and / or are at least largely implemented as cantilevered.

6. The system (7) for pipeline guidance according to any one of the preceding claims, characterized in that, - The flexible first and second longitudinal segments (11; 12) are respectively composed of articulated links (20) of energy guiding chains that can be offset in at least two mutually perpendicular directions, on the first and second sub-segments (11A, 11B; 12A, 12B), preferably links (20) of energy guiding chains (10) that can be pivoted relative to each other in at least two directions, and - In the second sub-section (11B; 12B), spring-elastic support elements (18; 18') are respectively provided, which work together with the energy guiding chain (10) in a load-bearing manner within the guiding plane (E).

7. The system (7) for pipeline guidance according to claim 6, characterized in that, The spring-elastic support elements (18; 18') are respectively received within the energy guiding chain (10) with energy space offset, and / or The spring-elastic support element (18; 18') causes the energy guide chain (10) to automatically return to its original position, especially when it is offset due to the pivoting motion of the connected vehicle body, particularly to the energy guide chain (10) in a position that is at least segmentally substantially straight or elongated in the second sub-section (11B, 12B).

8. The system (7) for pipeline guidance according to claim 6 or 7, characterized in that, Each spring-elastic support element is implemented as a rod-shaped spring element (18) or a leaf spring element (18'), the spring elements being arranged to extend in the longitudinal direction of the energy guide chain (10).

9. The system (7) for pipeline guidance according to any one of the preceding claims, characterized in that, The system has a support bracket (16) for the steering section (13), wherein, - The turning section (13) between the flexible longitudinal sections (11, 12) can be supported or is supported at or on the load-bearing bracket (16); and / or - The spring-elastic support element (18) is held on one side at the load-bearing bracket (16); and / or - The support bracket (16) is implemented in a face-shaped and substantially V-shaped or U-shaped manner.

10. The system (7) for pipeline guidance according to any one of the preceding claims, especially according to claim 9, is characterized in that, The steering section (13) between the flexible longitudinal sections (11, 12) is rigidly fixed at least in sections in a predetermined direction, particularly on the support bracket (16), and is provided with a linear guide (17) by means of which the steering section (13) of the pipeline guiding device can be movably fastened to the support frame (5) of the vehicle.

11. The system (7) for pipeline guidance according to any one of the preceding claims, characterized in that, The pipeline guiding device has at least one deflectable energy guiding chain (10), which is at least primarily or entirely continuous from the first longitudinal section (11) through the turning section (13) to the second longitudinal section (12), and the energy guiding chain includes a plurality of interconnected links (20), wherein, Preferably, the link (20) is pivotable relative to each other in at least two substantially perpendicular directions, and / or Preferably, the links (20) that are hinged to each other are arranged sequentially in the longitudinal direction of the energy guiding chain, implemented as being open at the end sides, and forming at least one guiding channel (23) for the supply line by means of a radially outer sheath element (22), and / or The link includes a radial tab (25) with at least one through-hole (26) for a spring-loaded support element (18).

12. The system (7) for pipeline guidance according to claim 11, characterized in that, The link (20) forms a hinge connection (21A, 21B) that receives tension. The hinge connection is arranged within the sheath element (22) and chains the links (20) together in the longitudinal direction, preferably in a ball-joint manner, and / or The link (20) forms a generally circular, radially outward sheath.

13. The system (7) for pipeline guidance according to claim 11 or 12, characterized in that, Each of the links (20) has a sheath element (22) that is at least largely closed in the circumferential direction, and the links (20) engage with each other with sheath elements (22) that are successive to each other in the longitudinal direction to form an energy guiding chain (10) that is closed in the longitudinal direction.

14. The system for pipeline guidance according to claim 9 and any one of claims 10 to 13, characterized in that, The pipeline guiding device includes a plurality of clamp-like or clip-like fastening elements (15), by means of which the energy guiding chain (10) can be fastened or secured to the support bracket (16).

15. The system (7) for pipeline guidance according to any one of claims 1 to 10, characterized in that, The pipeline guiding device has at least one deflectable energy guiding chain (10) in the first longitudinal section (11) and the second longitudinal section (12), respectively, and the energy guiding chain is connected in the deflection section by a rigid pipeline guiding device.

16. The system (7) for pipeline guidance according to any one of the preceding claims, characterized in that, The pipeline guiding device has two vertically stacked energy guiding chains (10), which are at least primarily or completely continuous from the first longitudinal section (11) to the second longitudinal section (12) and are composed of pivotally connected links (20).

17. The system (7) for pipeline guidance according to any one of the preceding claims, characterized in that, The links (20) are each made of plastic parts, preferably one piece of plastic made of injection-molded plastic parts.

18. A system (7) for guiding pipelines according to any one of the preceding claims, comprising at least one supply pipeline, preferably multiple supply pipelines of different types, said supply pipeline being guided within the pipeline guiding device, particularly within the energy guiding chain (10), wherein, It is preferred that at least one high-voltage electrical pipeline is provided.

19. A multi-section vehicle, particularly an articulated bus, having two pivotally connected car bodies, the car bodies including a system (7) according to any one of the preceding claims, the system being disposed between the car bodies (1, 2) of the vehicle.

20. The multi-section vehicle according to claim 19, characterized in that, The first end fastener (14A) secures the end of the first longitudinal section (11) to one of the two vehicle bodies (1), and the second end fastener (14B) secures the end of the second longitudinal section (12) to the other of the two vehicle bodies (2); and / or A support frame (5) is provided, and the turning section (13) of the pipeline guide device is supported at the support frame; and / or The corrugated pipe connects the vehicle body (1, 2), and the pipeline guide device is arranged outside the corrugated pipe, especially above the corrugated pipe vertically.

21. An articulated bus having two movablely connected car bodies according to any one of claims 19 to 20, wherein, The rear vehicle body (2) is able to rotate relative to the front vehicle body (1) about a substantially vertical pivot axis (A), especially within an angle range of at least 50°, and is able to pivot about a substantially horizontal pitch axis (B), especially within an angle range of at least 20°.

22. An application of the system (7) according to any one of claims 1 to 18 for guiding at least one electrical supply line, particularly a high-voltage line in an electric articulated bus, between two car bodies (1, 2) in a multi-car vehicle.

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