Holding rod assembly

The handrail arrangement with a 360° adjustable support rod system addresses manufacturing tolerances and complex adjustments, offering quick installation and ergonomic design in passenger transport vehicles.

WO2025223739A1PCT designated stage Publication Date: 2025-10-30SIEMENS MOBILITY GMBH
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Patent Information

Application Number
PCT/EP2025/056888
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-04-26
Filing Date
2025-03-13
Publication Date
2025-10-30

AI Technical Summary

Technical Problem

Existing handrail arrangements in passenger transport vehicles face challenges due to manufacturing tolerances, requiring complex and costly adjustments, often involving numerous parts and neglecting design considerations, especially for non-round cross-sections, and are limited in adjustability, complicating assembly and increasing costs.

Method used

A handrail arrangement with a support rod system that is fully adjustable during assembly, allowing 360° rotation and alignment in azimuth and elevation, using a connection with a ball head and socket system for easy alignment and fixation, and a friction-enhancing surface for secure grip, enabling quick installation without additional preparatory work.

Benefits of technology

The solution provides easy compensation for manufacturing tolerances, reduces assembly time and costs, ensures secure grip, and maintains ergonomic design without obstructing the passenger's view, while allowing for modular and visually appealing installations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a holding rod assembly (10), in particular for a passenger transport vehicle (1), comprising a base (100) and a holding rod element (200) having at least one holding rod (230). The holding rod element (200) is secured to the base (100), and the holding rod element (200) and the base (100) are connected via a connecting device (300) which is designed such that, in an assembly position P1, the holding rod element (200) can be oriented in the azimuth direction α and elevation direction α relative to the base (100).
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Description

[0001] Description

[0002] Handrail arrangement

[0003] The invention relates to a handrail arrangement, in particular for a passenger transport vehicle, comprising a base and a handrail element with at least one handrail, wherein the handrail element is attached to the base.

[0004] Furthermore, the invention relates to a passenger transport vehicle comprising at least such a handrail arrangement or a further developed arrangement as described below.

[0005] The floors in vehicle bodies, for example in rail vehicles, are subject to quite large tolerances regarding their alignment with an imaginary, parallel surface to the top of the rail. Special handrails mounted on this floor can therefore be very differently aligned and misaligned with each other within a vehicle.

[0006] Existing solutions typically involve situations where complete spatial adjustment is either impossible or extremely complex, requiring additional preparatory assembly work (drilling to nominal diameter, pinning, etc.). These solutions often consist of numerous individual parts, complicating technical implementation. Furthermore, they are frequently geometrically limited (e.g., a round beam cross-section), neglecting design considerations (e.g., oval or rectangular cross-sections). The large number of individual parts also often results in high manufacturing costs. Complex adjustment principles further increase assembly time, exacerbating the cost situation.

[0007] In previous tie rod arrangements, these have a very complicated mechanism, based on a bearing point at the bottom and a screw ring with a 90° offset as the base.

[0008] These screws can be adjusted, making it difficult to align the support rod arrangement in the room.

[0009] Based on this, the invention aims to provide a handrail arrangement that allows manufacturing tolerances to be easily compensated for. This objective is achieved by the handrail arrangement of claim 1 and the passenger transport vehicle of claim 9.

[0010] Advantageous designs and further developments are the subject of the respective sub-claims.

[0011] According to the invention, a grab bar arrangement, particularly for a passenger transport vehicle, is provided, comprising a base and a grab bar element with at least one grab bar, wherein the grab bar element is attached to the base. The grab bar element and the base are connected via a connection designed such that, in a mounting position, the grab bar element is adjustable relative to the base in azimuth and elevation.

[0012] According to the invention, a vehicle for passenger transport is further provided, comprising such a, or as described below, further developed stall arrangement.

[0013] According to the invention, a spatially adjustable support rod arrangement, in particular for vehicles for passenger transport, is created which is fully adjustable during assembly and can be pivoted 360° about a vertical axis so that manufacturing tolerances (e.g. of the car body) can be compensated for.

[0014] The support rod arrangement according to the invention is simply constructed and easy to adjust.

[0015] Furthermore, the retaining rod arrangement according to the invention is a quick-assembly concept which can be installed in the vehicle ready for installation and does not require any further preparatory work such as drilling, riveting, etc.

[0016] The connection to the body shell of a vehicle can be either detachable (e.g. screwed) or permanent (e.g. welded).

[0017] Elevation is the angle of altitude between the plane of the vehicle's base or floor and the grab rail assembly. Azimuth is the orientation or angle of rotation of the grab rail assembly around the surface normal of the vehicle's base or floor.

[0018] Preferably, the support rod arrangement can be aligned by 360° with respect to the azimuth.

[0019] Furthermore, preferably the support rod arrangement is alignable with respect to the elevation by at least 20°, preferably at least 15°, and more preferably at least 10°, in particular at least 5°.

[0020] This ensures a sufficiently large degree of adjustability. Previous tie rod arrangements are not capable of compensating for such large tolerances and being infinitely adjustable. Instead, such arrangements only exhibit minimal play and are designed to compensate for minor deviations in the range of millimeters or a few centimeters, so that a tie rod can be connected to the vehicle body at the top and bottom.

[0021] In this design, the grab rail assembly is connected to the vehicle's body structure only on one side (top or bottom). One end of the grab rail assembly is therefore free.

[0022] In the design of the support rod arrangement, it can be provided that the connection is designed in such a way that, in a fixing position, the support rod element can be fixed relative to the base in azimuth and elevation.

[0023] The connection is preferably designed such that the support rod element can be continuously aligned and fixed relative to the base in azimuth and elevation.

[0024] In the fixed position, the grab bar element is locked in place, providing a safe way for a passenger to hold on during vehicle operation.

[0025] In one embodiment of the support rod assembly, the connection can be provided with a head, preferably a ball head, and a socket, preferably a ball socket, which are in contact with each other. By providing a head and a socket, in particular a ball head and a ball socket, an adjustable bearing is provided. This principle allows for spatial adjustment of the support rod assembly as well as a complete 360° rotation about a vertical axis.

[0026] In the design of the retaining rod arrangement, it may be provided that the retaining rod arrangement has a fixing element that is designed to generate a preload force which acts on the connection.

[0027] The fixing, after aligning the retaining rod arrangement in the fixing position in the vehicle (e.g. vertically), is achieved via the fixing element (e.g. a screw), which exerts a preload force on the system of the head and the socket and fixes the components via a frictional connection.

[0028] In the embodiment of the retaining rod arrangement, it can be provided that the connection, preferably the pan and / or the head, has / have a friction-enhancing surface and / or coating.

[0029] This makes it possible to transmit greater forces or moments.

[0030] Preferably, the increase in friction is achieved by providing a nickel-coated surface with embedded diamonds, or alternatively by providing a thin foil (for example, with a thickness of 0.1 mm) mounted between the head and the pan, with precisely these properties.

[0031] This allows torques or forces to be transmitted through the contact partners by a factor of 3 to 5 with the same preload force.

[0032] In the design of the support rod arrangement, it can be provided that at least one support rod element has a base body and / or a connecting element.

[0033] This provides a modular design for the handrail assembly. In one embodiment of the handrail assembly, it can be provided that at least one handrail has an arcuate shape on its upper surface, and that the handrail is connected to a base body of the handrail element, preferably at two ends.

[0034] This results in high ergonomics and offers multiple grip options for several passengers while simultaneously ensuring easy manufacturing.

[0035] In an embodiment of the retaining rod arrangement, it can be provided that the base, together with the base body or the connecting element, forms the connection, wherein preferably the base body or the connecting element has the socket and the base has the head; or the base body or the connecting element has the head and the base has the socket.

[0036] This ensures a modular design of the support bar arrangement.

[0037] In the design of the retaining rod arrangement, it may be provided that the connection, i.e., the head and socket, has a non-circular cross-section. This can mean, for example, that the head and socket have a round, elliptical, and / or asymmetrical cross-section.

[0038] In the design of the passenger transport vehicle, it may be provided that the passenger transport vehicle has a floor structure and the handrail arrangement is attached to the floor structure, preferably only to the floor structure.

[0039] The concept stipulates that the support bar arrangement is attached to the floor, or the base plate of the substructure, and therefore has no upper connection.

[0040] The connecting element and the base body are designed to be separable, and the connecting element is preferably low-profile enough to allow a floor covering with a corresponding recess to be easily and without problems laid over it. Only then is the rest of the support bar assembly installed.

[0041] This achieves a high level of ergonomics for the passenger while simultaneously preventing any impairment of the passenger's field of vision. Preferably, the handrail arrangement is designed such that a passenger can see over it when standing. In the embodiment of the passenger transport vehicle, it may be provided that at least one handrail arrangement is positioned centrally in a transverse direction of the vehicle.

[0042] This results in good accessibility and an appealing visual design of the vehicle.

[0043] In the design of the passenger transport vehicle, it may be provided that the passenger transport vehicle is a track-guided vehicle, preferably a rail vehicle.

[0044] Preferably, the rail vehicle is a commuter train, a regional train or a suburban train.

[0045] The invention will now be explained with reference to several embodiments and the drawings.

[0046] It shows:

[0047] Fig. 1 shows a schematic perspective view of a passenger transport vehicle according to the invention;

[0048] Fig. 2 shows a schematic perspective view of a support rod arrangement according to a first embodiment according to the invention;

[0049] Fig. 3 shows a schematic perspective view of the support rod arrangement according to the invention in the first embodiment;

[0050] Fig. 4 shows a schematic perspective exploded view of the retaining rod arrangement according to the first embodiment according to the invention;

[0051] Fig. 5 shows a schematic perspective view of the support rod arrangement according to the invention in the first embodiment;

[0052] Fig. 6 shows a schematic perspective view of the support rod arrangement according to the invention in the first embodiment;

[0053] Fig. 7 shows a schematic sectional view of a support rod arrangement according to a second embodiment according to the invention; and Fig. 8 shows further schematic sectional views of the support rod arrangement according to the second embodiment according to the invention.

[0054] Fig. 1 shows a schematic perspective view of a passenger transport vehicle according to the invention 1.

[0055] The passenger transport vehicle 1 includes at least one stopping stand arrangement 10.

[0056] The passenger transport vehicle 1 has a floor structure 3 and the handrail arrangement 10 is attached to the floor structure 3.

[0057] The at least one handrail arrangement 10 is, for example, arranged centrally in a transverse direction of the passenger transport vehicle 1.

[0058] The passenger transport vehicle 1 is preferably a track-guided vehicle, and more preferably a rail vehicle.

[0059] Figures 2 to 6 show schematic perspective views of a support rod arrangement 10 according to a first embodiment according to the invention.

[0060] The handrail arrangement 10 is designed in particular for a passenger transport vehicle 1, as shown in Fig. 1.

[0061] The support rod arrangement 10 comprises a base 100 and a support rod element 200 with at least one support rod 230, wherein the support rod element 200 is attached to the base 100.

[0062] The support rod element 200 and the base 100 are connected via a connection 300.

[0063] The connection is designed such that, in a mounting position Pi (see Figs. 2 and 3), the support rod element 200 is alignable relative to the base 100 in azimuth a and elevation E. The support rod element 200 is thus movably alignable with the base 100.

[0064] The connection 300 is further designed such that in a fixing position P2 (see Fig. 2 and 3) the retaining rod element 200 can be fixed relative to the base 100 in azimuth a and elevation E.

[0065] According to Fig. 2 and Fig. 3, the retaining rod arrangement is shown in fixing position P2 and in assembly position Pi.

[0066] In the assembly position Pi, the support rod arrangement is shown in a position deflected relative to the fixing position P2 in azimuth a and elevation E.

[0067] The connection 300 has a head 310, preferably a ball head, and a socket 320, preferably a ball socket, which are in contact with each other.

[0068] The connection 300 is designed such that the retaining rod element 200 can be continuously aligned and fixed relative to the base 100 in azimuth a and elevation E.

[0069] In the assembly position Pi, the support rod element 200 can be continuously aligned relative to the base 100, and in the fixing position P2, the support rod element 200 can be fixed in its position relative to the base.

[0070] The retaining rod arrangement 10 further includes a fixing element 400 which is designed to generate a preload force which acts on the connection 300.

[0071] The fixing element 400, which is designed, for example, as a screw connection, can generate a preload force that acts on the connection 300. If the fixing element is not preloaded, the retaining rod assembly 10 is in mounting position Pi.

[0072] If the fixing element 400 is pre-tensioned, the retaining rod arrangement 10 is in fixing position P2. In the fixing position P2, the pre-tensioning force acts on the connection 300, so that a frictional connection exists between the contact surfaces of the connection 300, i.e., preferably the head 310 and the socket 320.

[0073] In the assembly position Pi, no preload force acts on the connection 300, so that there is no frictional connection between the contact surfaces of the connection 300, i.e., preferably the head 310 and the socket 320, and these are movable relative to each other.

[0074] The connection 300, preferably the pan 320 and / or the head 310, has / have a friction-enhancing surface and / or coating.

[0075] The at least one support rod element 200 has a base body 210 and a connecting element 220.

[0076] The at least one support rod 230 is curved on a top surface 232 and the support rod 230 is preferably connected via two ends 234 to a base body 210 of the support rod element 200.

[0077] According to the first embodiment, the base 100, together with the connecting element 220, forms the connection 300.

[0078] The base body 210 is preferably detachably connected to the connecting element 220. By detachably attaching the base body 210 to the connecting element 220, the floor covering can be easily pulled over the head 310 of the base 100 and glued in place during installation. The connecting element 220 is then attached and aligned. The base body 210 is then mounted over the connecting element 210 with the support rod 230, aligned, and fixed to the connecting element 220.

[0079] According to the first embodiment, the connecting element 220 has the pan 320 and the base 100 has the head 310.

[0080] The base 100 is preferably designed to have a base plate. In a preferred embodiment, a spherical dome with a circular opening at the top of the dome is located on the base. A threaded alignment rod is rotatably mounted in the center of this dome (ball-and-socket bearing). This rod passes through the aforementioned hole and is further guided through a cylinder with a bore, which has another socket bearing at its upper end.

[0081] At the end of the threaded rod, the aforementioned cylinder, including the counter tube with retaining rods, is pulled onto the aforementioned spherical cap via a spherical end cap nut. Before tightening the screw connection, the aforementioned assembly can be aligned around the pivot point in all directions. With a sufficiently high tightening torque, the base plate, including the spherical cap and the retaining system, is so secure that the required holding forces are achieved.

[0082] In an embodiment, the retaining rod arrangement 10 may be designed such that an identical concentric tightening force can always be generated on the connection 300, in particular on the head 310 and the socket 320, by means of a concentric bearing, on the retaining element 200 and the base 100 by means of the fixing element 400, regardless of the azimuth a and / or elevation E of the retaining rod element 200 relative to the base 100.

[0083] A ring-shaped contact is thus formed between the head 310 and the pan 320, whereby a force of the screw connection is always perpendicular to the ball along the sleeve or the cylinder 200.

[0084] Figures 7 to 8 show schematic sectional views of a retaining rod arrangement 10 according to the invention in a second embodiment, wherein the second embodiment is based on the first embodiment and only the differences are described below.

[0085] According to the second embodiment, at least one retaining rod element 200 has a base body 210.

[0086] The base 100 together with the base body 210 forms the connection 300, wherein the base body 210 has the head 310 and the base 100 has the pan 320.

[0087] According to the second embodiment, the connection 300 is positioned significantly higher above the base structure 3, preferably more than 40 cm, and particularly more than 60 cm, than according to the first embodiment. This has the advantage that lower moments need to be transmitted through the connection 300 than according to the first embodiment.

[0088] The foregoing disclosure applies equally to a passenger transport vehicle, preferably a track-guided vehicle, in particular a rail vehicle, comprising at least one handrail arrangement as described above. Likewise, the foregoing disclosure may also refer to a single car body of a track-guided vehicle.

[0089] Finally, it should be mentioned that the features of all the embodiments described above can be combined with one another in any way to form further embodiments of the invention. Likewise, all features of dependent claims can be combined individually with any feature of any other claim, either individually or in any combination, to obtain further embodiments.

[0090] Although the invention has been illustrated and described in detail by means of an exemplary embodiment, the invention is not limited by the disclosed examples and other variations can be derived from them by the person skilled in the art without leaving the scope of protection of the invention.

[0091] Regardless of the grammatical gender of a particular term, persons with male, female or other gender identities are included.

Claims

Patent claims 1. Handrail arrangement (10), in particular for a passenger transport vehicle (1), comprising a base (100) and a handrail element (200) with at least one handrail (230), wherein the handrail element (200) is attached to the base (100), characterized in that the handrail element (200) and the base (100) are connected via a connection (300) which is designed such that in a mounting position (Pi) the handrail element (200) is designed to be alignable relative to the base (100) in azimuth (a) and elevation (E).

2. Support rod arrangement (10) according to claim 1, characterized in that the connection (300) is designed such that in a fixing position (P2) the support rod element (200) can be fixed relative to the base (100) in azimuth (a) and elevation (E).

3. Support rod arrangement (10) according to claim 1 or 2, characterized in that the connection (300) has a head (310), preferably a ball head, and a socket (320), preferably a ball socket, which are in contact with each other.

4. Retaining rod arrangement (10) according to one of the preceding claims, characterized in that the retaining rod arrangement (10) has a fixing element (400) which is designed to generate a preload force (F) which acts on the connection (300).

5. Support rod arrangement (10) according to one of the preceding claims, characterized in that the connection (300), preferably the pan (320) and / or the head (310), has / have a friction-enhancing surface and / or coating.

6. Support rod arrangement (10) according to one of the preceding claims, characterized in that the at least one support rod element (200) has a base body (210) and / or a connecting element (220).

7. Support rod arrangement (10) according to one of the preceding claims, characterized in that the at least one support rod (230) is arcuate on an upper surface (232), and the support rod (230) is connected to a base body (210) of the support rod element (200), preferably via two ends (234).

8. Support rod arrangement (10) according to one of the preceding claims, characterized in that the base (100) together with the base body (210) or the connecting element (220) form the connection (300), wherein preferably the base body (210) or the connecting element (220) has the socket (320) and the base (100) has the head (310); or the base body (210) or the connecting element (220) has the head (310) and the base has the socket (320).

9. Passenger transport vehicle (1), characterized by at least one stanchion arrangement (10) according to one of claims 1 to 8.

10. Passenger transport vehicle (1) according to claim 9, characterized in that the passenger transport vehicle (1) has a floor structure (3) and the support rod arrangement (10) is attached to the floor structure (3).

11. Passenger transport vehicle (1) according to claim 9, characterized in that the at least one support rod arrangement (10) is arranged centrally in a transverse direction of the passenger transport vehicle (1).

12. Passenger transport vehicle (1) according to claims 9 to 11 , characterized in that the passenger transport vehicle (1) is a track-guided vehicle, preferably a rail vehicle.

13. Passenger transport vehicle (1) according to claims 9 to 12, characterized in that the base (100) is designed to be flat in such a way that a floor covering surrounding the base (100) can be mounted in a state attached to the floor construction (3).

Citation Information

Patent Citations

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