EP4341146A1 - Seitenwand für ein schienenfahrzeug - Google Patents
Seitenwand für ein schienenfahrzeugInfo
- Publication number
- EP4341146A1 EP4341146A1 EP22747025.9A EP22747025A EP4341146A1 EP 4341146 A1 EP4341146 A1 EP 4341146A1 EP 22747025 A EP22747025 A EP 22747025A EP 4341146 A1 EP4341146 A1 EP 4341146A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- side wall
- section
- planking
- rail vehicle
- ribs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/08—Sides
Definitions
- the invention relates to a side wall for a rail vehicle of differential construction.
- a lattice structure is constructed from sheet metal parts and planked with a sheet metal panel, with the sheet metal panel representing the outer skin of the large component.
- the resulting structure offers high strength at low weight and is equally suitable for production from steel or corrosion-resistant steel.
- the lattice structure is made up of frames and stringers oriented normal to the frames, which are usually welded to one another and to the planking.
- the sheet metal parts mentioned are connected to each other by means of a welding process with the lowest possible heat input, so that there is only little distortion of the components and the required finishing work, eg grinding and cementing, can be minimized.
- Welding processes that can be automated are particularly advantageous, whereby the accessibility of the welding point by the welding machine must be taken into account in the design.
- spot welding in which electric current is passed through two overlapping metal sheets and these are locally melted. In any case, this requires overlapping of the sheets, which can lead to increased mass of the large component and potentially to problems with the corrosion protection at the overlapping point.
- Long beams long roof beams
- This is particularly necessary for rail vehicles with several wide door openings, such as subways or trams.
- roof rails can be designed as bent sheet metal parts and each connected to the side wall and the roof. This construction is complex, since very large sheet metal parts have to be bent in a complicated manner and the automatic production of the weld seams is made more difficult because of the scarcely existing accessibility for a spot welding machine.
- the use of laser welding offers great advantages, since laser welding can be used to create butt seams and T-joints and the heat input is greatly reduced. As a result, the sheet metal profiles with a Z-shaped cross section used in conventional side walls can be replaced by flat sheets. It is also desirable not to design the roof rails as separate components, but rather to integrate their strength-increasing function in a side panel. No construction is known from the prior art which avoids the disadvantages described and at the same time combines a simple construction with low mass, high strength, good accessibility for rust protection measures and suitability for automated welding using laser light. Presentation of the invention
- the invention is therefore based on the object of specifying a side wall of a rail vehicle which is optimized with regard to its manufacture by means of laser welding and which has the strength of a conventional side wall with a roof rail.
- a side wall for a rail vehicle in differential construction which is designed to fasten its lower end to a subframe and the upper end to a roof, and which comprises a lattice-shaped composite of bows and frames and a planking of this latticed composite , wherein the planking is produced in one piece and comprises a vertical first section and a second section arranged at the upper end of the side wall and angled or bent in relation to the first section, and at the upper end of the second section a section which is oriented essentially vertically in the installed position of the side wall End plate is connected to the planking, and in the space between the upper portion of the planking and the end plate a plurality of ribs distributed along the longitudinal extent of the side wall are welded.
- the advantage can be achieved to be able to build a side wall, which directly to a base and a Roof can be connected and a roof rail is integrated into the structure of the side wall.
- a significant advantage of the present invention lies in its suitability for production by means of laser welding.
- a lattice-like combination of bows and frames is constructed, which is provided with planking, the outer skin of the side wall.
- the side wall is divided into a first and second section, the first section corresponding to the generally vertical part, usually equipped with door and window cutouts.
- the second section is angled or curved relative to the first section and forms that part of the sidewall which transitions into a roof.
- the planking is designed in one piece, so that no weld seam is required in the planking at the transition point between the first and the second section.
- the invention envisages connecting an end plate, which is oriented essentially vertically in the installed position of the side wall, to the planking at the upper end of the second section and welding in a plurality of ribs distributed along the length of the side wall in the space between the upper section of the planking and this end plate. In this way, a support structure with essentially triangular reinforcements is created in the upper, second section of the side wall.
- the integrated roof rail according to the invention is much easier to manufacture than conventional roof rails of differential design.
- the integrated roof rail has an essentially triangular cross-section (possibly with a curved side) and is open at the bottom since it is delimited by the planking and the end plate. In this way, surface coatings can also be applied very easily inside the integrated roof rail.
- Laser welding is particularly suitable for producing a side wall according to the invention, since this method is suitable for producing butt seams with little heat input and the side wall can therefore be produced from simple sheet metal parts cut out without folds. Furthermore, the surface quality of the paneling on the side facing away from the weld seam is not affected by the laser welding, so that no reworking such as cementing and grinding is required there. This is particularly advantageous as this side is generally a visible surface where great importance is attached to appearance. In certain places, however, it is advantageous to use more complex shaped sheet metal parts in order to minimize local stress concentrations at the welds. This is particularly the case on the ribs, which can be equipped with a strap on the open side of the integrated roof rail.
- the ribs are to be designed, for example, as flat sheets with a bevel on one side of their circumference. If this side is not straight and a fold is therefore not possible, the chord can also be manufactured as a separate sheet metal part and welded to the rib. As a result, for example, the rib can have a T-shaped cross section and the chord can have roundings at the connection points to the end plate and the uppermost bow.
- the welded reinforcement plate together with the uppermost stringer and part of the upper section of the skin, forms a hollow beam with a triangular cross-section, which is arranged in the integrated roof rail.
- the reinforcement plates can be designed as simple, flat sheet metal components and are each arranged between two ribs. In order to ensure the accessibility of the resulting cavity for surface coatings, it is advantageous to equip the reinforcement plates or the uppermost stringer with recesses. This Reinforcing plates can be provided over the entire length of the side wall, or only in places where increased strength is required, for example in the area of door openings.
- a further increase in the strength of the side wall can be achieved by providing a locking plate which is aligned essentially parallel to the first section of the planking and extends between two adjacent frames and the top bow and a bow below and is welded to these components.
- This striker plate forms a local box girder with high rigidity with the planking and is suitable for reinforcing the side wall next to points with a structural weakness, in particular next to door cutouts, with a striker plate preferably being provided on each side of a door cutout.
- Such a shooting plate therefore forms a second level to the planking.
- the present invention makes it possible to produce a side wall of a rail vehicle in a differential construction, with the function of a roof rail already being built into the structure of the side wall. Furthermore, simple, flat metal sheets can be used, which are connected by means of laser welding and thus overlapping of the metal sheets for the production of spot welds can be avoided. The resulting good accessibility of all surfaces makes it particularly easy to apply a surface coating for corrosion protection.
- Fig.2 side panel detail Fig.3 side panel section.
- Fig.4 side wall from the outside.
- Fig.l shows an example and schematic side wall.
- a side wall 1 is shown, as is used in the construction of rail vehicles.
- the side wall 1 is constructed as a paneled lattice structure made of frames and bows and has a lower end 2, which is designed for connection to an underframe, and an upper end 3, which is designed for connection to a roof.
- the embodiment shown of a side wall 1 with large door and window openings is typical for a rail vehicle for local passenger transport, for example a subway or tram.
- These large door and window openings weaken the supporting structure made of frames and bows, despite the door pillars 12 inserted into the structure, so that a roof longitudinal beam arranged at the upper end 3 ensures the strength of the side wall 1.
- This roof rail is integrated into the side wall 1 and is in the production of the side wall in differential construction.
- FIG. 2 shows a detail of the side wall by way of example and schematically.
- An oblique view from the inside of a section through a side wall 1 in the area of a door cutout is shown.
- the side wall 1 has a supporting structure of bows 4 and frames 5, the frame closest to the door cutout being designed as a door pillar 12, which is reinforced in relation to the frames 5 lying in between.
- Paneling 6 is arranged on this supporting structure, which is divided into a first section 7 and a second section 8, with the first section 7 being oriented essentially vertically when the side wall 1 is installed and the second section 8 being angled or angled in relation to the first section 7 is bent.
- the second section forms that part of the side wall 1 which represents the transition to a roof and in which a roof rail is arranged as an integral component.
- the planking 6 is made in one piece and connected to the supporting structure by means of welding, the transition from the first section 7 to the second section 8 takes place without the dividing of metal sheets at this point.
- an end plate 9 Arranged at the upper end 2 of the side wall 1 is an end plate 9 which is permanently connected to the planking 6 and which extends essentially perpendicularly in the direction of the lower end 2 of the side wall 1 .
- the end plate 9 is angled so that it has an L-shaped cross section, with one of the two legs of the end plate 9 extending away from the planking 6 . A connection to a roof can be made at this leg.
- a plurality of ribs 10 are welded into the skin 6, which connect the skin 6 to the end plate 9 and form a support structure with a substantially triangular cross-section, which extends over the entire length of the side wall and forms a roof sill.
- the ribs 10 are set narrower in areas where increased strength is required, in particular over the door cutouts, than in the sections in between.
- the roof rail that is created in this way is open at the bottom, so that corrosion protection measures can be carried out easily and the roof rail can be used as an installation space, for example for lines. In the embodiment shown, a further increase in strength is provided in the area of the door cutouts. Reinforcing plates 13 are welded in between the top bow 14 and the skin 6 .
- these components form a hollow beam with a triangular cross section.
- a further reinforcement is provided by means of a locking plate 11, which is arranged on both sides of the door cutout between the top bow 14 and the bow 4 below it and which is welded to the bows 4, 14 and the adjacent frame 5 and the door pillar 12.
- This locking plate 11 is arranged essentially parallel to the paneling 6 in this area and distributes the forces acting in the area of the door cutout into the remaining side wall, so that stress concentrations in this area are reduced.
- the ribs 10 are designed as flat sheets, which are either folded on one side or provided with a welded belt. This fold or the belt serves to reduce the stress concentration at the connection points with the end plate 9 or the uppermost frame 14.
- FIG. 3 shows a section through a side wall by way of example and schematically.
- the side wall 1 from FIG. 2 is shown in a section perpendicular to the longitudinal extension of the side wall 1.
- the shape of the ribs 10 and the arrangement of the reinforcement plates 13 can be seen here.
- the belt of the ribs 10 merges into the horizontal section of the end plate 9, so that stress concentrations are reduced at this point as well.
- the skin 6 is divided into sections of different thicknesses, with a section of lesser thickness 15 being inserted at points of lower strength requirements, as a result of which the mass of the side wall is reduced.
- planking 6 has an area which, in terms of its thickness, has a greater material thickness than the other areas. These thickened areas are used in the longitudinal direction of the side wall wherever the stresses are correspondingly high.
- FIG. 4 shows a side wall from the outside in an exemplary and schematic manner. It is an oblique view from the outside of a side wall, as shown in the previous figures, but without planking.
- the arrangement of the reinforcement plates 13, starting from the top bow 14, is clearly visible.
- the arrangement of the locking plate 11 in relation to the support structure made of bows and frames, with an essentially cuboid cavity extending between the planking and the locking plate 11, can also be clearly seen.
- the welded-in ribs 10, reinforcement plates 13, and bows and frames are equipped with recesses, through which the mass of the side wall 1 is reduced and better accessibility for the production of a surface coating is created. List of designations
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA50592/2021A AT524864B1 (de) | 2021-07-16 | 2021-07-16 | Seitenwand für ein Schienenfahrzeug |
| PCT/EP2022/069412 WO2023285436A1 (de) | 2021-07-16 | 2022-07-12 | Seitenwand für ein schienenfahrzeug |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4341146A1 true EP4341146A1 (de) | 2024-03-27 |
| EP4341146B1 EP4341146B1 (de) | 2025-12-10 |
| EP4341146C0 EP4341146C0 (de) | 2025-12-10 |
Family
ID=82694242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22747025.9A Active EP4341146B1 (de) | 2021-07-16 | 2022-07-12 | Seitenwand für ein schienenfahrzeug |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20240317278A1 (de) |
| EP (1) | EP4341146B1 (de) |
| AT (1) | AT524864B1 (de) |
| WO (1) | WO2023285436A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7556168B1 (ja) | 2024-03-04 | 2024-09-25 | 日本車輌製造株式会社 | 鉄道車両 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56160263A (en) * | 1980-05-12 | 1981-12-09 | Tokyu Car Corp | Frame structure for car body |
| JPS5911957A (ja) * | 1982-07-14 | 1984-01-21 | 株式会社新潟鐵工所 | 鉄道車両の側構体組立方法 |
| JPS59199361A (ja) * | 1983-04-27 | 1984-11-12 | 株式会社日立製作所 | 車両の構体 |
| DE9415771U1 (de) * | 1994-09-30 | 1994-12-15 | ABB Henschel AG, 13509 Berlin | Schienengebundener Dieseltriebwagen |
| FR2794414B1 (fr) * | 1999-06-03 | 2001-08-24 | Alstom | Caisse de vehicule ferroviaire, vehicule ferroviaire et procedes d'assemblage correspondants |
| DE10360965A1 (de) * | 2003-12-23 | 2005-07-28 | Siemens Ag | Modular aufgebaute Seitenwand eines Wagenkastens, insbesondere für Schienenfahrzeuge, und Verfahren zur Herstellung einer solchen Seitenwand |
| JP2007050850A (ja) * | 2005-08-19 | 2007-03-01 | Nippon Sharyo Seizo Kaisha Ltd | 鉄道車両構体 |
| WO2011038751A1 (de) * | 2009-09-29 | 2011-04-07 | Siemens Ag Österreich | Langträger für schienenfahrzeuge |
| JP5161251B2 (ja) * | 2010-03-25 | 2013-03-13 | 株式会社日立製作所 | 衝撃吸収構造を備える鉄道車両 |
| AT509833B1 (de) * | 2010-04-26 | 2012-03-15 | Siemens Ag Oesterreich | Verstärkter langträger für ein schienenfahrzeug |
| EP2704938B1 (de) * | 2011-05-04 | 2016-01-13 | Bombardier Transportation GmbH | Schienenfahrzeugrohbau und verfahren zu dessen herstellung |
| JP5759356B2 (ja) * | 2011-12-12 | 2015-08-05 | 近畿車輌株式会社 | 鉄道車両の屋根構体構造 |
| JP6230981B2 (ja) * | 2013-11-06 | 2017-11-15 | 株式会社日立製作所 | 軌条車両構体 |
| CN108622123B (zh) * | 2018-05-09 | 2020-04-07 | 西南交通大学 | 低成本的碳纤维复合材料空铁车体及制造工艺 |
| DE102019126375A1 (de) * | 2019-09-30 | 2021-04-01 | Bombardier Transportation Gmbh | Stützstrukturmodul für einen Wagenkasten |
-
2021
- 2021-07-16 AT ATA50592/2021A patent/AT524864B1/de active
-
2022
- 2022-07-12 US US18/578,999 patent/US20240317278A1/en active Pending
- 2022-07-12 WO PCT/EP2022/069412 patent/WO2023285436A1/de not_active Ceased
- 2022-07-12 EP EP22747025.9A patent/EP4341146B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20240317278A1 (en) | 2024-09-26 |
| EP4341146B1 (de) | 2025-12-10 |
| AT524864B1 (de) | 2022-10-15 |
| AT524864A4 (de) | 2022-10-15 |
| EP4341146C0 (de) | 2025-12-10 |
| WO2023285436A1 (de) | 2023-01-19 |
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