EP1706539B1 - Dispositif coulissant pour aiguillage de chemin de fer - Google Patents
Dispositif coulissant pour aiguillage de chemin de fer Download PDFInfo
- Publication number
- EP1706539B1 EP1706539B1 EP03819229A EP03819229A EP1706539B1 EP 1706539 B1 EP1706539 B1 EP 1706539B1 EP 03819229 A EP03819229 A EP 03819229A EP 03819229 A EP03819229 A EP 03819229A EP 1706539 B1 EP1706539 B1 EP 1706539B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sliding
- sliding device
- railway switches
- stock rail
- bearing
- 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
Links
- 241001669679 Eleotris Species 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000011161 development Methods 0.000 claims description 6
- 238000007373 indentation Methods 0.000 claims description 4
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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 a sliding device for railway switches.
- the subject device is meant for use both when installing new track switches and in existing switches.
- known sliding devices comprise a support structure bearing one or more rotating sliding elements able to support the points in a position removed from the stock rail.
- the support structure is generally mounted on the track with fastening means.
- a first type of device is derived directly on the sliding bearing of the points or anyway requires a specific design of the sliding bearing, as is readily apparent for instance from the description of the patents DE 4041264 and US 5390881 .
- This known kind of device has the drawback of being able to be mounted exclusively on a bearing especially designed to receive it. It cannot be applied to the most common standards of sliding bearings currently present for instance on railway lines. This entails that said device can only be mounted when building a switch, whereas it cannot be mounted on existing switches unless the previously mounted sliding bearing is completely replaced or costly modifications are made to adapt the sliding bearing, which is not always feasible.
- a support structure is used, mounted on the tracks with fastening means connected in overhang to the sleepers or connected between two consecutive sleepers.
- fastening means of the support structure of the rotary sliding elements refer mainly to the sleepers, and hence to elements that generally have standardised technical-constructive characteristics.
- the main defect of this kind of device is that it is not sufficiently simple to install and at times it requires the introduction of small modifications to enable to connect the fastening means which must be able to unload the stresses of the rotary sliding elements which are not positioned directly over the sleepers.
- anchoring to the track occurs directly on the rail flange with fastening means that require the introduction of a plurality of elements (for instance, anchoring pincers shaped complementarily with respect to the flange of the point) which entail increased production and installation expenses (see description of the patent CH 368201 ).
- This support structure has a box like arrangement, substantially shaped complementarily to an upper portion of the sliding bearing, and it is provided with two lateral flanks, on each whereof is mounted at least a shaft which supports at least a rotary sliding element able to support the point when it is removed from the stock rail.
- the technical task constituting the basis for the present invention is to obtain a sliding device for railway switches that overcomes the aforesaid drawbacks.
- the technical task of the present invention is to provide a sliding device for railway switches that is easily mounted on any railway switch, irrespective of the relative position of the bearing and of the point.
- the reference number 1 globally designates a sliding device 1 for railway switches according to the present invention.
- the sliding device 1 is meant to be coupled to railway switches (not shown) which have at least a fixed stock rail and a least a point movable, on command, between an active position, in which it is close to the stock rail, and an inactive position, in which it is distanced from the stock rail.
- the sliding device 1 shown in the accompanying figures is destined to support the point during its move between the active position and the inactive position and during its permanence in the inactive position, according to the operating procedures described in the patent EP 922 807 .
- the sliding device 1 comprises first of all a support structure 2 which has a central body 3 and two lateral flanks 4 connected to the central body 3.
- the central body 3 can be coupled to an upper portion of a sliding bearing mounted over a sleeper of a track (not shown), and the support structure 2 has a "C" shaped, in order partially to encompass the sliding bearing.
- the central body 3 is constituted by a flat plate which may have laterally (with reference to the direction of development which in use is perpendicular to the track) two flanges 5, perpendicular thereto, extending downwards, for the connection of the lateral flanks 4.
- the sliding device 1 is also provided with at least two rotary sliding elements 6 able to support the point in the inactive position.
- they are idle rollers 6 pivotally engaged to the lateral flanks 4 of the support structure 2, with horizontal axes of rotation, mutually parallel and substantially perpendicular, in use, to the direction of actuation of the point in correspondence with the sliding device 1.
- two, four, six or more rotary sliding elements 6 can be provided, with half associated to a lateral flank 4 and half to the other one.
- the lateral flanks 4 have at least a first part 8 associated to the central body 3 and at least a second part 9 associated to the first part 8.
- the first part 8 is fastened to the central body 3, for instance by means of welding, and, in the illustrated embodiments, it vertically extends laterally to the central body 3 itself (in the cases where they are present, it is coupled to the vertical flanges 5 of the central body 3).
- the second part 9 is instead movable relative to the first part 8 in such a way as to be adjustable vertically relative thereto, to adapt the position of the sliding elements 6 to the operative conditions of the switch whereto the sliding device 1 is applied.
- the second movable part 9 of the flanks is removably secured to the first fixed part 8, whereto it is connected by means of one or more fastening screws 10 which are inserted into threaded holes 11 obtained on the fixed part 8 and possibly on the vertical flanges of the central body 3.
- the mobile part 9 has vertically elongated through holes 12 which allow to adjust its position.
- the second mobile part 9 of the flanks can be adjustable relative to the fixed part 8, both in continuous fashion (solution, not shown herein, in which the coupling surfaces are smooth), and in discrete fashion (as shown in the accompanying figures) with the capability to provide adjustment according to a predefined pitch.
- first part 8 and the second part 9 of the lateral flanks 4 respectively have a first and a second coupling surface 13, 14, at least partly substantially having complementary shapes.
- each coupling surface 13, 14 has a indentations 15 for coupling with the other surface (the indentations 15 are visible only in Figures 25 through 27 , whilst in the other figures it is shown with a black area).
- the pitch of the indentations 15 constitutes the pitch for adjusting the movable part 9.
- the discrete adjustment solution illustrated herein is preferable both when there are requirements for mechanical tightness between the movable part 9 and the fixed part 8, and to facilitate the positioning of the rotary sliding elements 6.
- the movable part 9 or the fixed part 8 of each lateral flank 4 or both have an appendage 16 with mainly horizontal development positioned on the side of the device which in use is oriented towards the track.
- This appendage 16 is able, in use, to be coupled to the lower part of the stock rail, and it inferiorly has a profile 17 for coupling to said stock rail.
- the appendage 16 is provided with means 17 for adjusting the position of the movable part 9 or of the fixed part 8 whereof it is a part, operatively active in correspondence with the coupling profile 17.
- the adjustment means 17 comprise a through screw 18 with mainly vertical development, inserted through the appendage 16 in proximity with its tip.
- means 19 for locking the through screw 18 are provided, for selectively enabling or inhibiting its adjustment.
- the locking means 19 are constituted by a horizontal screw 20 which intercepts each through screw 18.
- each idle roller 6 has a lateral surface 21, hump shaped, to improve the sliding of the point.
- fastening means 7 In regard to the fastening means 7, they can assume the most suitable shape according to requirements.
- the fastening means comprise at least a slot 22 obtained in the support structure 2 and at least a locking member 23 inserted through the slot 22.
- This solution allows to adjust the position of the sliding device 1 relative to the bearing and to the point.
- the slot 22 is elongated according to a substantially horizontal direction of development and, in use, transverse to the track, whilst the locking member 23 is able to be hitched in use either with the sliding bearing or with the sleeper.
- the locking member 23 is not shown, but it can be constituted either by a locking screw, or by the mounting screw of the sliding bearing.
- the slot 22 is obtained along the central longitudinal axis of the central body 3, in correspondence with the end 24 which in use is farther away from the track. Moreover, the slot 22 is open in correspondence with said end 24 and two holed metal plates 25 are provided for tightness ( Figure 12 ).
- the first engagement element 27 has a nut screw 29 for receiving the tightening screw 26.
- the first and the second engagement elements 27, 28, which can be inserted into cavities present on the sliding bearing, have respective inclined surfaces 30, relative to said tightening screw 26, which allow their mutual sliding.
- the first engagement element 27 can slide along the tightening screw 26 following its rotation in a direction or in the other.
- screwing the tightening screw 26 causes the movement of the two engagement elements 27, 28 within the cavity (by mutual sliding along the respective inclined surfaces 30), between a first configuration of minimum bulk, in which they can be inserted without interference into the cavity, and a second configuration of maximum bulk, in which they act in sealed fashion within said cavity by means of two corresponding gripping surfaces 31.
- a return spring 32 which tends to keep them in the position of minimum bulk.
- an indented washer 33 which interacts with an additional indented portion 34 of the lateral flank 4 (shown in black colour in the accompanying figures).
- Figures 1 through 24 also show constructive elements (such as washers, split pins, bearings, etc.), not described because they are known, and utilised in the usual fashion for mounting, in particular, the idle rollers 6).
- constructive elements such as washers, split pins, bearings, etc.
- the mounting of the sliding device 1 of the present invention provided with the engagement elements 27, 28, entails, first of all, the preparation of the bearing whereto it is to be applied, which is cleaned and deburred at least on the edges.
- the cavities of the bearing must be completely freed from any deposits which may have accumulated therein.
- the device is also correctly positioned transversely to the track by means of the slots 22.
- the height of the idle rollers 6 must be verified to see whether it is adequate.
- the device is so fitted, once the support structure 2 is positioned and locked, it is also possible to act on the through screws 18 of the adjustment means 17 to bring them to bear on the stock rail. Lastly, they are also locked by means of the horizontal screws 20.
- the mounting is similar, with obvious modifications, in the case of the first type of fastening means 7 described herein.
- the present invention achieves important advantages.
- the sliding device for railway switches of the present invention can be easily mounted with an optimal adjustment on any railway switch, regardless of the relative position of the bearing and of the point.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Push-Button Switches (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Electrophonic Musical Instruments (AREA)
- Slide Switches (AREA)
- Bearings For Parts Moving Linearly (AREA)
Claims (16)
- Un dispositif coulissant pour aiguillages de chemin de fer ayant une contre-aiguille fixe et au moins une aiguille pouvant se déplacer, sur commande, entre une position active, dans laquelle elle est à proximité de la contre-aiguille, et une position inactive, dans laquelle elle est éloignée de ladite contre-aiguille, ledit dispositif coulissant (1) comprenant
une structure de support (2) ayant un corps central (3), pouvant être accouplé avec une partie supérieure d'un palier lisse monté au-dessus d'une traverse d'une voie, et deux côtés latéraux (4) raccordés audit corps central (3) ;
au moins deux éléments coulissants (6) tournants servant à supporter ladite aiguille dans ladite position inactive et montés chacun sur chacun desdits côtés latéraux (4) ; et
des moyens (7) servant à fixer ladite structure de support (2) audit palier lisse ;
caractérisé en ce que lesdits côtés latéraux (4) ont au moins une première partie (8) qui est fixée au corps central (3) et au moins une deuxième partie (9), mobile, qui est associée à la première partie (8) et peut être réglée verticalement par rapport à ladite première partie (8) pour adapter la position des éléments coulissants (6) aux conditions de service. - Le dispositif coulissant pour aiguillages de chemin de fer selon la revendication 1, caractérisé en ce que la deuxième partie mobile (9) des côtés est fixée de façon amovible à la première partie fixe (8).
- Le dispositif coulissant pour aiguillages de chemin de fer selon la revendication 2, caractérisé en ce que ladite partie mobile (9) est fixée à la partie fixe (8) au moyen d'une ou de plusieurs vis de fixation (10).
- Le dispositif coulissant pour aiguillages de chemin de fer selon la revendication 1, 2 ou 3, caractérisé en ce que la deuxième partie mobile (9) des côtés peut être réglée de façon continue par rapport à la partie fixe (8).
- Le dispositif coulissant pour aiguillages de chemin de fer selon la revendication 1, 2 ou 3, caractérisé en ce que la deuxième partie mobile (9) des côtés peut être réglée de façon discrète par rapport à la partie fixe (8).
- Le dispositif coulissant pour aiguillages de chemin de fer selon la revendication 5, caractérisé en ce que la première partie (8) et la deuxième partie (9) des côtés latéraux (4) ont respectivement une première et une deuxième surfaces d'accouplement (13), (14) qui sont au moins en partie conformées de façon complémentaire l'une par rapport à l'autre et présentent chacune des entailles (15) pour leur accouplement avec l'autre partie.
- Le dispositif coulissant pour aiguillages de chemin de fer selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins la partie mobile (9) et/ou la partie fixe (8) de chaque côté latéral (4) présente un appendice (16) essentiellement horizontal qui est destiné, pendant l'utilisation, à être accouplé avec la partie inférieure de la contre-aiguille et qui présente inférieurement un profil (17) pour l'accouplement avec ladite contre-aiguille, et en ce qu'il comprend en outre des moyens (17) servant à régler la position de ladite partie mobile (9) associée audit appendice (16) et agissant au niveau dudit profil (17) d'accouplement.
- Le dispositif coulissant pour aiguillages de chemin de fer selon la revendication 7, caractérisé en ce que lesdits moyens de réglage (17) comprennent une vis traversante (18) qui se développe principalement à la verticale, est introduite à travers ledit appendice (16) et exerce, pendant l'utilisation, une poussée contre la partie inférieure de la contre-aiguille.
- Le dispositif coulissant pour aiguillages de chemin de fer selon la revendication 8, caractérisé en ce qu'il comprend en outre des moyens (19) servant à bloquer ladite vis traversante (18) pour en permettre et en inhiber sélectivement le réglage.
- Le dispositif coulissant pour aiguillages de chemin de fer selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une pluralité d'éléments coulissants (6) tournants associés aux parties mobiles (9) de chaque côté latéral (4).
- Le dispositif coulissant pour aiguillages de chemin de fer selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque élément coulissant (6) tournant consiste en un rouleau fou (6).
- Le dispositif coulissant pour aiguillages de chemin de fer selon la revendication 11, caractérisé en ce que chaque rouleau fou (6) présente une surface latérale (21) en forme de dos d'âne.
- Le dispositif coulissant pour aiguillages de chemin de fer selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdits moyens de fixation (7) comprennent au moins un orifice fendu (22) réalisé dans la structure de support (2) et allongé dans une direction de développement essentiellement horizontale et au moins un organe de blocage (23) introduit à travers ledit orifice fendu (22) et destiné, pendant l'utilisation, à être accroché sur ledit palier lisse ou sur ladite traverse.
- Le dispositif coulissant pour aiguillages de chemin de fer selon la revendication 13, caractérisé en ce que ledit organe de blocage (23) comprend une vis de blocage qui peut être vissée sur ledit palier ou ladite traverse.
- Le dispositif coulissant pour aiguillages de chemin de fer selon la revendication 13, caractérisé en ce que ledit organe de blocage (23) comprend au moins une vis de serrage (26) introduite à travers ledit orifice fendu (22), un premier élément d'assujettissement (27) ayant un écrou (29) destiné à recevoir ladite vis de serrage (26), et un deuxième élément d'assujettissement (28), les premier et deuxième éléments d'assujettissement (27), (28) pouvant être introduits dans une cavité située sur ledit palier lisse et ayant des surfaces inclinées (30) respectives, par rapport à ladite vis de serrage (26), qui sont accouplées de façon à pouvoir glisser réciproquement l'une sur l'autre, le vissage de la vis de serrage (26) déterminant le mouvement des deux éléments d'assujettissement (27), (28) à l'intérieur de la cavité par glissement réciproque le long des surfaces inclinées (30) respectives, entre une première configuration d'encombrement minimum, dans laquelle ils peuvent être introduits sans interférence dans ladite cavité, et une deuxième configuration d'encombrement maximum, dans laquelle ils agissent de façon étanche dans ladite cavité par l'intermédiaire de deux surfaces de prise (31) correspondantes.
- Le dispositif coulissant pour aiguillages de chemin de fer selon la revendication 15, caractérisé en ce qu'il comprend deux desdits orifices fendus (22), associés chacun à chaque côté latéral (4), et deux desdits organes de blocage (23) destinés à être introduits dans deux cavités réalisées latéralement sur ledit palier.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IT2003/000863 WO2005064080A1 (fr) | 2003-12-30 | 2003-12-30 | Dispositif coulissant pour aiguillage de chemin de fer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1706539A1 EP1706539A1 (fr) | 2006-10-04 |
EP1706539B1 true EP1706539B1 (fr) | 2008-05-07 |
Family
ID=34717602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03819229A Expired - Lifetime EP1706539B1 (fr) | 2003-12-30 | 2003-12-30 | Dispositif coulissant pour aiguillage de chemin de fer |
Country Status (8)
Country | Link |
---|---|
US (1) | US20070176055A1 (fr) |
EP (1) | EP1706539B1 (fr) |
AT (1) | ATE394548T1 (fr) |
AU (1) | AU2003300752A1 (fr) |
CA (1) | CA2552373A1 (fr) |
DE (1) | DE60320871D1 (fr) |
ES (1) | ES2305584T3 (fr) |
WO (1) | WO2005064080A1 (fr) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH368201A (de) | 1959-02-27 | 1963-03-31 | Peddinghaus Carl Dan Kg | Federnde Rollenlagerung für Weichenzungen |
DE1658366A1 (de) | 1967-10-16 | 1970-10-22 | Wolfen Filmfab Veb | Weichenzungenleitvorrichtung |
LU75283A1 (fr) * | 1976-07-01 | 1978-02-08 | ||
AT375697B (de) | 1982-09-03 | 1984-08-27 | Maurer Gerhard | Rollenlagerung fuer weichenzungen |
DE4041264A1 (de) | 1990-12-21 | 1992-06-25 | Peddinghaus Carl Dan Gmbh | Vorrichtung zum anheben der zungenschiene einer weiche |
US5390881A (en) | 1992-07-22 | 1995-02-21 | Bwg Butzbacher Weichenbau Gmbh | Roller assembly for a switch tongue used with a stock rail |
DE9317723U1 (de) | 1993-11-19 | 1994-01-20 | Enzesfeld-Caro Metallwerke Ag, Enzesfeld | Weiche für Gleise des schienengebundenen Verkehrs |
US5501418A (en) * | 1994-10-03 | 1996-03-26 | Humphrey; John | Switch point roller assist apparatus |
IT1298067B1 (it) | 1997-12-10 | 1999-12-20 | Impresa Angelo Mazzi Snc Di Ma | Dispositivo di scorrimento per scambi ferroviari |
-
2003
- 2003-12-30 DE DE60320871T patent/DE60320871D1/de not_active Expired - Lifetime
- 2003-12-30 AU AU2003300752A patent/AU2003300752A1/en not_active Abandoned
- 2003-12-30 US US10/585,105 patent/US20070176055A1/en not_active Abandoned
- 2003-12-30 WO PCT/IT2003/000863 patent/WO2005064080A1/fr active IP Right Grant
- 2003-12-30 ES ES03819229T patent/ES2305584T3/es not_active Expired - Lifetime
- 2003-12-30 EP EP03819229A patent/EP1706539B1/fr not_active Expired - Lifetime
- 2003-12-30 CA CA002552373A patent/CA2552373A1/fr not_active Abandoned
- 2003-12-30 AT AT03819229T patent/ATE394548T1/de active
Also Published As
Publication number | Publication date |
---|---|
CA2552373A1 (fr) | 2005-07-14 |
US20070176055A1 (en) | 2007-08-02 |
WO2005064080A1 (fr) | 2005-07-14 |
DE60320871D1 (de) | 2008-06-19 |
ATE394548T1 (de) | 2008-05-15 |
ES2305584T3 (es) | 2008-11-01 |
AU2003300752A1 (en) | 2005-07-21 |
EP1706539A1 (fr) | 2006-10-04 |
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