EP1444121B1 - Fahrgestellfederträger - Google Patents

Fahrgestellfederträger Download PDF

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Publication number
EP1444121B1
EP1444121B1 EP02790543A EP02790543A EP1444121B1 EP 1444121 B1 EP1444121 B1 EP 1444121B1 EP 02790543 A EP02790543 A EP 02790543A EP 02790543 A EP02790543 A EP 02790543A EP 1444121 B1 EP1444121 B1 EP 1444121B1
Authority
EP
European Patent Office
Prior art keywords
spring support
bogie
sole
longitudinal beam
spring
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.)
Expired - Lifetime
Application number
EP02790543A
Other languages
English (en)
French (fr)
Other versions
EP1444121A1 (de
Inventor
Gérard LELASSEUX
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cgl Sarl
Original Assignee
Cgl Sarl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8868771&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1444121(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cgl Sarl filed Critical Cgl Sarl
Publication of EP1444121A1 publication Critical patent/EP1444121A1/de
Application granted granted Critical
Publication of EP1444121B1 publication Critical patent/EP1444121B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/301—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating metal springs

Definitions

  • the present invention relates to a bogie and more particularly a bogie for receiving freight wagons.
  • the freight wagons are usually supported by two bogies, each of them consisting essentially of two longitudinal beams which are joined by two extreme cross members and a central cross member.
  • the bogies are supported by two extreme axles carrying the wheels which are themselves maintained by spring supports which connect them to the structure via suspension springs.
  • the spring support which is usually made of a molded part, is fixed under each of the longitudinal beams by a weld seam, so that the latter which is usually made of an I-shaped profile, receives the spring support on its lower sole.
  • the object of the present invention is to remedy such a disadvantage by proposing a solution making it possible to increase the resistance to the breaking stresses that manifest in this critical zone.
  • the present invention thus relates to a bogie of the type whose structure consists essentially of two longitudinal beams made in mechanically welded, which are maintained by cross members, and whose cross section is I-shaped, that is to say that is to say that it consists of an upper sole and a lower sole which are connected by a vertical core, this structure being supported at each of its ends on wheels mounted on axles held by solidarity spring supports of the structure, characterized in that each of the spring supports ends, at its upper part, by an element which constitutes at least the sole of the longitudinal beam on which it is fixed.
  • At least the upper part of the spring support forming the sole located on the side of the center of the bogie extends longitudinally outwardly beyond the rest of the spring support. It has been found that this form of implementation has the effect of increasing the resistance to stresses in the junction zone between the spring support and the longitudinal beam on which it is fixed.
  • the spring support and its sole portion may, interestingly, be obtained by molding.
  • FIG. 2 shows one of the ends of a longitudinal beam 3 forming the structure of a bogie according to the prior art, which is intended to receive a spring support 4, these two elements being represented before assembly.
  • Such an assembly consists in positioning the upper part of the spring support 4 in contact with the lower flange 7 of the beam 3 and attaching it by welding by forming a weld bead between the upper face of the support of spring 4 and the lower flange 7 of the beam 3.
  • a critical stress formation zone was the zone designated A in FIG. 1, which corresponds to the place where the connecting the spring support 4 with the lower sole 7.
  • the spring support 4 comprises an upper part which is provided with a sole 7a identical to the lower sole of the longitudinal beam 3.
  • This sole 7a extends, in the longitudinal direction, beyond the lower part of the spring support, towards the center of the bogie.
  • the other side of the sole 7a can also be extended in the same way.
  • the longitudinal beam 3 is devoid of lower sole 7 in this zone so that its sole is constituted by the sole 7a of the spring support 4.
  • the present invention is therefore particularly interesting since it not only makes it possible to reduce the level of the mechanical stresses that are exerted in a zone of vulnerability of the bogie, but it also makes it possible to simplify, to a large extent, the welding operation. whereby the spring support 4 is secured to the longitudinal beam 3.
  • the spring support 4 may include not only a portion 7a of the sole 7, but also a portion 9a of the vertical core 9. It has thus been found that such a mode of implementation Work facilitated the realization of the longitudinal weld seam for connecting the spring support 4 to the beam 3 without impairing the mechanical strength of this assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Telephone Function (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Springs (AREA)

Claims (3)

  1. Fahrgestell des Typs, dessen Struktur im Wesentlichen aus zwei durch Verschweißen hergestellten Längsträgern (3) besteht, die durch Querträger abgestützt werden, und deren Querschnitt I-förmig ist, d. h. dass er aus einem oberen Gurt (5) und einem unteren Gurt (7) besteht, die durch einen vertikalen Steg (9) verbunden sind, wobei diese Struktur an jedem ihrer Enden auf Rädern (12) aufliegt, die durch Achsen (10) verbunden sind, welche durch mit der Struktur fest verbundene Federauflager (4) abgestützt sind, dadurch gekennzeichnet, dass jedes der Federauflager (4) in seinem oberen Teil in einem Element (7a) endet, das zumindest den Gurt des Längsträgers (3) bildet, auf dem es befestigt ist, wobei dieses Element einen Teil (9a) des vertikalen Steges (9) dieses Längsträgers beinhaltet.
  2. Fahrgestell nach Anspruch 1, dadurch gekennzeichnet, dass das Element (7a) des Federauflagers (4), das einen Gurt bildet, sich zumindest in Richtung der Mitte des Fahrgestells über den übrigen Teil des Federauflagers (4) hinaus erstreckt.
  3. Fahrgestell nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Federauflager (4) und sein den Gurt bildendes Element (7a) durch Gießen erzielt werden.
EP02790543A 2001-10-26 2002-10-25 Fahrgestellfederträger Expired - Lifetime EP1444121B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0113887 2001-10-26
FR0113887A FR2831507B1 (fr) 2001-10-26 2001-10-26 Appui ressorts pour boggie
PCT/FR2002/003674 WO2003035446A1 (fr) 2001-10-26 2002-10-25 Appui ressorts pour boggie

Publications (2)

Publication Number Publication Date
EP1444121A1 EP1444121A1 (de) 2004-08-11
EP1444121B1 true EP1444121B1 (de) 2006-12-13

Family

ID=8868771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02790543A Expired - Lifetime EP1444121B1 (de) 2001-10-26 2002-10-25 Fahrgestellfederträger

Country Status (5)

Country Link
EP (1) EP1444121B1 (de)
AT (1) ATE348031T1 (de)
DE (1) DE60216805T2 (de)
FR (1) FR2831507B1 (de)
WO (1) WO2003035446A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1737716B1 (de) * 2004-03-26 2017-11-15 Ab Skf Befestigung der primärfederung in einem drehgestell eines eisenbahnfahrzeugs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5226369A (en) * 1992-06-15 1993-07-13 National Castings Inc. Sideframe for a railroad car truck
DE19506586C1 (de) * 1995-02-24 1996-08-14 Waggonfabrik Talbot Gmbh & Co Tragkonstruktion, insbesondere Drehgestellrahmen und Verfahren zu deren Herstellung
DE19925634A1 (de) * 1999-06-04 2000-12-14 Dwa Deutsche Waggonbau Gmbh Fahrwerk für Schienenfahrzeuge

Also Published As

Publication number Publication date
ATE348031T1 (de) 2007-01-15
WO2003035446A1 (fr) 2003-05-01
EP1444121A1 (de) 2004-08-11
FR2831507B1 (fr) 2004-10-29
FR2831507A1 (fr) 2003-05-02
DE60216805D1 (de) 2007-01-25
DE60216805T2 (de) 2007-11-08

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