EP2520713A2 - Zungenschiene für Weichen - Google Patents

Zungenschiene für Weichen Download PDF

Info

Publication number: EP2520713A2
Authority: EP; European Patent Office
Prior art keywords: needle; angle; impact; switchgear; vehicle
Prior art date: 2011-05-06
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

Application number

EP12305494A

Other languages

English (en)

French (fr)

Other versions

EP2520713B1 (de

EP2520713A3 (de

Inventor

Francesco Barresi

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.)

Vossloh COGIFER SA

Original Assignee

Vossloh COGIFER SA

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.)

2011-05-06

Filing date

2012-05-03

Publication date

2012-11-07

2012-05-03 Application filed by Vossloh COGIFER SA filed Critical Vossloh COGIFER SA

2012-05-03 Priority to PL12305494T priority Critical patent/PL2520713T3/pl

2012-11-07 Publication of EP2520713A2 publication Critical patent/EP2520713A2/de

2014-02-26 Publication of EP2520713A3 publication Critical patent/EP2520713A3/de

2019-08-28 Application granted granted Critical

2019-08-28 Publication of EP2520713B1 publication Critical patent/EP2520713B1/de

Status Active legal-status Critical Current

2032-05-03 Anticipated expiration legal-status Critical

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Classifications

- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/02—Tongues; Associated constructions

Definitions

the present invention relates to the railway field of switches and more specifically to the particular geometry of these switches.
At least one of the daughter tracks has a deflection with a curved geometry so as to separate its own path from that of the second daughter path.
the construction of the curvature of this curve imposes a certain number of technical constraints due, in particular, to the centrifugal force exerted on the moving vehicle guided by the deviating daughter track.
This tangential curvature therefore requires sufficient surface area for the switchgear to be properly positioned and does not allow for implementation of the device in areas where spatial restrictions are encountered. Furthermore, the long distance of the curvature is located on each of the elements of the switchgear. The different elements of the track device then have longer lengths and therefore machining accordingly, generating costs all the more important.
the present invention aims to overcome these disadvantages.
a needle for a switchgear characterized in that it comprises a geometric trace arranged to form, over its entire length, at least one angle with the main axis of displacement of a vehicle wheel impacting the needle at a point considered, the formed angle having a discontinuous variation along the length of the needle, so that this angle generates an impact force inversely proportional to the probability of the impact between a vehicle wheel and the needle at the point considered.
Another subject of the invention is a deflection branch for a switchgear formed by one or more supporting and / or guiding elements of at least one vehicle wheel, characterized in that it incorporates at least one needle according to the invention. 'invention.
the invention also relates to a switchgear characterized in that it incorporates at least one needle and / or branch of deflection according to the invention.
the invention relates to a switchgear, or switching device, and in particular to the geometry of at least one branch of deflection that this device integrates and more particularly to the needle which forms the guide end of this branch of diversion.
the needle of the invention has a geometric pattern arranged to form, over its entire length, at least one angle with the main axis of movement of a vehicle wheel impacting the needle at a point considered, formed angle having a discontinuous variation along the length of the needle, such that this angle generates an impact force inversely proportional to the probability of the impact between a vehicle wheel and the needle at the point considered.
This geometric layout allows the needle to present, on the one hand, a smaller impact angle at the input of a switchgear and, on the other hand, an angle of impact. of greater importance in depth of the switchgear.
the angle of impact is, on the one hand, lower at the end of the needle where the probability of impact between a wheel of a vehicle and one of the lateral faces of the needle is the most important, and, on the contrary, more important when this probability of impact decreases.
the geometric layout of the needle of the invention then makes it possible to limit the wear due to the impacts of vehicle wheels against one of its lateral faces.
the main axis of movement of a vehicle wheel which enters the apparatus of the track at the end of the needle substantially corresponds to an axis parallel to the axis of the counter-needle of the apparatus of way.
the first angle, which the first portion 1 of the needle makes, forms an impact angle 6, preferably of the order of 0.05 ° to 0.5 ° and ideally of the order of 0.1 ° to 0.3 °, which is defined according to the speed and radius chosen.
This first impact angle 6, carried by the first portion 1 of the needle is positioned at the end of the needle at the entrance of the switchgear at the level of the portion 1 of the needle, where the probability of impact between a vehicle wheel and one of the side faces of the needle is the most important.
this first impact angle 6 has a sufficiently small angle value to limit the impact force between a vehicle wheel and one of the side faces of the needle.
the first angle 6, carried by the first portion 1 is formed by a variation of the width of the needle.
the needle from its point, which forms a fine end towards the body which widens to reach the standard width of a rail, has a variation in its width. which defines the first impact angle 6.
the length of the needle which carries this widening of the width of the needle, then realizes the first portion 1 of the needle.
This second impact angle 7, which has an angle value greater than that of the first impact angle 6, is then located along the portion 2 of the needle, where the probability of impact between a wheel vehicle and one of the side faces of the needle is less important.
the third portion 3 of the needle is positioned after the second portion 2a, 2b of the needle and produces a curve R1 whose curvature corresponds to the curvature defined by the deflection branch and is continued by the track core of the switching device.
the vehicle wheels are tapered, so that the width between two opposite wheels of a vehicle is less than the width between the two wheels.
two parallel rails of a railway network This difference in width avoids a blockage of the wheels between the rails, but also generates a natural dangling exerted by any vehicle traveling on a railway track. This natural swing then acts on the point of impact of the wheel of the vehicle against the needle by shifting the point of impact more or less deeply along the needle relative to the end located at the entrance. of the switchgear.
the wheel of the vehicle When the wheel of the vehicle is said to be perfect, it has a mode of operation and a substantially identical behavior, or at least very close to that of a new wheel or a theoretical operating model.
the first portion 1 corresponds to the length of the needle which carries all potential points of impact between a perfect vehicle wheel and the needle.
This first portion 1 is then formed by the length of the needle located between the end of the needle and the point of the needle at which the lateral displacement imposed by the needle to this perfect wheel corresponds to the difference 11 which exists between the width 10 separating two wheels opposite of a vehicle and the width 9 separating the two parallel rails of a rail network, as shown schematically figure 4a .
the needle of the invention is characterized in that the first rectilinear portion 1 is positioned on the distance of the needle which carries at least all the points of impact likely to exist. between the needle and a perfect vehicle wheel.
Non-perfect wheels are commonly used wheels. Due to wear, the conical shape of the wheels is hollow and the width between two opposite non-perfect wheels of a vehicle is less than that which separates the two opposite perfect wheels of the same vehicle. Therefore, the natural swing of a vehicle equipped with non-perfect wheels becomes more important than when the same vehicle is equipped with perfect wheels. Due to this smaller separation between the two opposite wheels of the vehicle and the larger swing, the non-perfect wheels of the vehicle have a greater probability of impacting against the needle, located deeper in the aircraft. way.
the second portion 2a, 2b corresponds to the length of the needle which carries all the potential points of impact between the needle and a non-perfect wheel of vehicle and which are not positioned on the first portion 1 of the needle.
This second portion 2a, 2b is then formed by the length of the needle located between the first portion 1 and the point of the needle at which the lateral displacement imposed by the needle to this non-perfect wheel corresponds to the difference 13 existing between the width 12 between two opposite non-perfect wheels of a vehicle and the width 9 separating the two parallel rails of a railway network, as shown schematically in figure 4b .
the needle of the invention is characterized in that the second portion 2a, 2b is positioned on the distance of the needle which carries at least all the points of impact likely to exist between the needle and a non-perfect wheel vehicle and which are not positioned on the first portion 1 of the needle.
this second portion 2a is rectilinear.
the difference between the first impact angle 6 of the first rectilinear portion 1 and the second impact angle 7 of the second rectilinear portion 2a provides a continuity break in the geometric profile of the needle at a point of contact. This break in continuity thus forms a hock between the first portion 1 and the second portion 2a of the needle.
the junction 5 between the second portion 2a and the curve R1 of the third portion 3 of the needle may have a break in continuity when the angle 8, which forms the end of the curve R1 of the third portion 3 , is different and / or greater than the second impact angle 7 of the second rectilinear portion 2a.
this second portion 2b is formed by a curve R2, the radius of curvature of which is smaller than the radius of curvature of the curve R1 of the third portion 3 or of the apparatus output and / or the length of which is less than the length of the curvature of the curve R1 of the third portion 3 or the output of the switchgear.
the junction points 4, 5 respectively between the first 1 and second 2b portions on the one hand, and the second 2b and third 3 portions on the other hand may not form a break in hock geometric pattern but on the contrary a progressive modification of the impact angle.
the curve R1 of the second portion 2b has an impact angle at its end at the junction 4 with the first portion 1, which is at least equal to the impact angle 6 of the first portion 1. even, the angle of impact of this curve at its end at the junction point with the third portion 3 is at most equal to the angle of impact of the third portion 3 at this junction point 5.
the second portion 2b is formed by a curve R2, whose length is less than the length of the first portion 1 of the needle.
the needle of the invention in all its variants, is adapted to be integrated in a deflection branch for a switchgear, this branch of deflection can also be formed by one or more support members and / or guiding at least one vehicle wheel.
the needle and the deflection branch of the invention are adapted to integrate a switchgear, in particular of the switch type.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Architecture (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Mechanisms For Operating Contacts (AREA)
Platform Screen Doors And Railroad Systems (AREA)

EP12305494.2A 2011-05-06 2012-05-03 Zungenschiene für Weichen Active EP2520713B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PL12305494T PL2520713T3 (pl)	2011-05-06	2012-05-03	Iglica do zwrotnicy

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR1153913A FR2974824B1 (fr)	2011-05-06	2011-05-06	Aiguille pour appareil de voie

Publications (3)

Publication Number	Publication Date
EP2520713A2 true EP2520713A2 (de)	2012-11-07
EP2520713A3 EP2520713A3 (de)	2014-02-26
EP2520713B1 EP2520713B1 (de)	2019-08-28

Family

ID=46051654

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP12305494.2A Active EP2520713B1 (de)	2011-05-06	2012-05-03	Zungenschiene für Weichen

Country Status (6)

Country	Link
EP (1)	EP2520713B1 (de)
DK (1)	DK2520713T3 (de)
ES (1)	ES2758878T3 (de)
FR (1)	FR2974824B1 (de)
PL (1)	PL2520713T3 (de)
PT (1)	PT2520713T (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN103757996A (zh) *	2014-02-10	2014-04-30	中铁山桥集团有限公司	一种道岔侧向尖轨平面线型及设计方法
EP2829655A1 (de) *	2013-07-26	2015-01-28	Société Nationale des Chemins de Fer Français SNCF	Schienenweiche

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2608647A1 (fr)	1986-12-12	1988-06-24	Magyar Allamvasutak Vezerigazg	Aiguillage ferroviaire

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1000415B (de) *	1953-12-18	1957-01-10	Gutehoffnungshuette Sterkrade	Parabelzungenvorrichtung fuer Rillenschienenweichen
DE1083843B (de) *	1956-09-24	1960-06-23	Berliner Verkehrs Betr E Bvg	Zungenvorrichtung fuer Weichen, insbesondere mit Boegen kleineren Halbmessers
US5375797A (en) *	1993-09-17	1994-12-27	Willow; Robert E.	Compound geometry rail switch

2011
- 2011-05-06 FR FR1153913A patent/FR2974824B1/fr active Active
2012
- 2012-05-03 DK DK12305494T patent/DK2520713T3/da active
- 2012-05-03 ES ES12305494T patent/ES2758878T3/es active Active
- 2012-05-03 EP EP12305494.2A patent/EP2520713B1/de active Active
- 2012-05-03 PT PT123054942T patent/PT2520713T/pt unknown
- 2012-05-03 PL PL12305494T patent/PL2520713T3/pl unknown

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2608647A1 (fr)	1986-12-12	1988-06-24	Magyar Allamvasutak Vezerigazg	Aiguillage ferroviaire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2829655A1 (de) *	2013-07-26	2015-01-28	Société Nationale des Chemins de Fer Français SNCF	Schienenweiche
FR3009001A1 (fr) *	2013-07-26	2015-01-30	Sncf	Branchement de voie ferree permettant une circulation a vitesse elevee sur voie deviee, et coeur de croisement a pointe fixe associe
CN103757996A (zh) *	2014-02-10	2014-04-30	中铁山桥集团有限公司	一种道岔侧向尖轨平面线型及设计方法

Also Published As

Publication number	Publication date
PL2520713T3 (pl)	2020-02-28
ES2758878T3 (es)	2020-05-06
DK2520713T3 (da)	2019-12-02
FR2974824B1 (fr)	2014-02-21
EP2520713B1 (de)	2019-08-28
PT2520713T (pt)	2019-12-05
EP2520713A3 (de)	2014-02-26
FR2974824A1 (fr)	2012-11-09

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