EP2003247A2 - Lateral extension device for railway tracks - Google Patents
Lateral extension device for railway tracks Download PDFInfo
- Publication number
- EP2003247A2 EP2003247A2 EP08156384A EP08156384A EP2003247A2 EP 2003247 A2 EP2003247 A2 EP 2003247A2 EP 08156384 A EP08156384 A EP 08156384A EP 08156384 A EP08156384 A EP 08156384A EP 2003247 A2 EP2003247 A2 EP 2003247A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- arm
- bracket
- lateral extension
- sleeper
- supporting
- 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.)
- Withdrawn
Links
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
- E01B26/00—Tracks or track components not covered by any one of the preceding groups
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B26/00—Tracks or track components not covered by any one of the preceding groups
- E01B26/005—Means for fixing posts, barriers, fences or the like to rails
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F1/00—Construction of station or like platforms or refuge islands or like islands in traffic areas, e.g. intersection or filling-station islands; Kerbs specially adapted for islands in traffic areas
- E01F1/005—Portable or movable traffic-area platforms or islands, e.g. portable loading islands, retractable platforms for traffic-directing officer
Definitions
- the present invention relates in general to railway tracks, said tracks including sleepers provided with attachments for the rails, and more in particular regards a lateral extension device for tracks.
- EP-1081286B1 Known from the European patent No. EP-1081286B1 is a device of the above sort, which includes a bracket having parts for attachment to the rail on opposite sides of the sleeper, a part for resting on the sleeper, and members for mechanical connection of the parts for attachment to the flange of the rail.
- the bracket is provided for supporting service systems alongside the track, such as for example platforms, barriers, etc.
- this known extension device entails, in use, the reaction, on the attachments between sleepers and rails, of the load applied on the corresponding bracket. Said effect, which is altogether acceptable in the case of traditional attachments between rails and sleepers of the so-called "K” type, is instead unsuitable and unacceptable with the use of present-day attachments between rails and sleepers of the "Pandrol” and "Vossloch” type in so far as with attachments of this sort no counterthrust is allowed to the load exerted by the corresponding elastic clamping member.
- the object of the present invention is to provide a lateral extension device for railway tracks of the type defined above that does not lead to any reaction or in any case any type of undesirable effect in regard to the attachments between the rails of the railway track and the corresponding sleepers.
- a further object of the invention is to provide a lateral extension device for railway tracks that is simple, sturdy, and inexpensive to produce.
- the extension device according to the invention is mainly characterized in that:
- a supporting arm of a service device Conveniently connected to the supporting bracket is a supporting arm of a service device, and the connection between the supporting arm and the supporting bracket conveniently consists in an articulation about an axis roughly parallel to the track.
- the supporting arm articulated to the supporting bracket can moreover be equipped with an extension and/or with a foot for resting on the ground, both of which are conveniently adjustable.
- FIGs 1 to 4 are schematic illustrations of four examples of sleepers for railway tracks that can be used as first component of the lateral extension device according to the invention.
- These sleepers referred to as “cable-duct sleepers”, are designated as T1, T2, T3 and T4 and can be made of pre-stressed concrete, composite materials or steel, and have one or two (or even more) longitudinal through cavities C with circular, quadrangular or polygonal cross section. They are prearranged at the top for fixing retention plates P for attachments for the rails R ( Figure 3 ) of a railway track.
- the attachments can be of the traditional K type or else, more conveniently, can be of the "Pandrol” or "Vossloch” type.
- Sleepers of this sort will be provided not necessarily along the entire line, but only in the areas in which the use of lateral extension devices according to the invention is required.
- the second component of the lateral extension device consists in an assembly including at least one or two (or more) entirely or partially threaded bars, designed to be inserted within the through cavity or through cavities C of the sleeper T, and a supporting mechanism carried by one end or each end of the at least one bar, projecting from the sleeper T.
- the cup springs 3, set between the distribution plates 4 and the fixing nuts D, have the function of compensating for the typical inclination of the end or each end of the sleeper T with respect to the bars B, B1 inserted through the cavities C.
- the threaded ends Bf of the bars B, B1 projecting from one end - in the case of the example represented - and also from the other end of the sleeper T function as fixing members, via further nuts D, of corresponding generally bracket-shaped supporting elements 6. It should be noted that the arrangement described herein could be limited to just one of the ends of the sleeper T.
- Each bracket 6, the wall 6a of which is perforated for passage of the threaded ends Bf of the two bars B, B1 in turn supports a reaction arm 7 provided at the bottom with an adjustable extension 8.
- the reaction arm 7 is connected to the bracket 6 in an articulated way about a pin 9, which is set transverse to the sleeper T, i.e., parallel to the rail R.
- the arm 7 can face downwards, as in the case of Figures 2 and 5 and the right-hand part of Figure 3 , or else upwards as in the case of Figure 4 and in the left-hand part of Figure 3 , or else again it can be generally horizontal, as in the case of the embodiment of Figure 10 .
- various arrangements and combinations are possible, according to the conformation of the terrain alongside the railway track, possibly also different for the right-hand end and left-hand end of the sleepers T, as is precisely the case represented in Figure 3 .
- the reaction arm 7 is adjustable angularly with respect to the bracket 6 about the corresponding pin 9, by means of adjustment bolts 10 carried by said bracket 6 and reacting against an appendage 7a of the arm 7. In turn, the position of the extension 8 with respect to the reaction arm 7 can be adjusted via fixing bolts 11.
- the extension 8 in turn bears a possible element S for support and connection of a service device, constituted, for example, by a platform SP and/or by a side barrier L, etc.: service devices that can typically be installed by means of the lateral extension device according to the invention can include treading surfaces and other platforms, protection and sound-absorbing walls, signalling devices, mains, auxiliary rails, barriers, etc.
- the extension 8 can be provided with one or more adjustment holes g for fixing the supporting element S, where present.
- the arrangement of the arm 7 inclined upwards ( Figures 2 , 4 and left-hand part of Figure 3 ) and the one facing downwards ( Figure 5 and right-hand part of Figure 3 ) enable positioning of the service device carried by the lateral extension device according to the invention, respectively above or beneath the plane of the rails R.
- the embodiment represented in Figure 10 where, as has been said, the arm 7 is substantially horizontal, enables positioning of the service device (for example, constituted by the platform SP) a little above or beneath the plane of the rails R.
- the lateral extension device according to the invention is simple and inexpensive to produce and lay down, and with the use of "cable duct" sleepers T it is particularly simple and convenient.
- the load applied to the lateral extension device according to the invention is transmitted directly to the sleepers T, without any effect on the attachments of the rails R.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
- Bridges Or Land Bridges (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
Description
- The present invention relates in general to railway tracks, said tracks including sleepers provided with attachments for the rails, and more in particular regards a lateral extension device for tracks.
- Known from the European patent No.
EP-1081286B1 is a device of the above sort, which includes a bracket having parts for attachment to the rail on opposite sides of the sleeper, a part for resting on the sleeper, and members for mechanical connection of the parts for attachment to the flange of the rail. The bracket is provided for supporting service systems alongside the track, such as for example platforms, barriers, etc. - The arrangement of this known extension device entails, in use, the reaction, on the attachments between sleepers and rails, of the load applied on the corresponding bracket. Said effect, which is altogether acceptable in the case of traditional attachments between rails and sleepers of the so-called "K" type, is instead unsuitable and unacceptable with the use of present-day attachments between rails and sleepers of the "Pandrol" and "Vossloch" type in so far as with attachments of this sort no counterthrust is allowed to the load exerted by the corresponding elastic clamping member.
- The object of the present invention is to provide a lateral extension device for railway tracks of the type defined above that does not lead to any reaction or in any case any type of undesirable effect in regard to the attachments between the rails of the railway track and the corresponding sleepers.
- A further object of the invention is to provide a lateral extension device for railway tracks that is simple, sturdy, and inexpensive to produce.
- With a view to achieving said purposes, the extension device according to the invention is mainly characterized in that:
- the sleepers have at least one through longitudinal cavity; and
- said at least one through cavity receives a bar or a respective bar that is fixed to the ends of the sleeper and projects laterally thereto for attachment of at least one supporting bracket.
- Conveniently connected to the supporting bracket is a supporting arm of a service device, and the connection between the supporting arm and the supporting bracket conveniently consists in an articulation about an axis roughly parallel to the track. The supporting arm articulated to the supporting bracket can moreover be equipped with an extension and/or with a foot for resting on the ground, both of which are conveniently adjustable.
- The invention will now be described in detail with reference to the annexed drawings, which are provided purely by way of non-limiting example and in which:
-
Figure 1 is a schematic perspective view that shows four examples of types of sleepers for railway tracks that can be used in the lateral extension device according to the invention; -
Figure 2 is a partially exploded schematic view that shows an example of embodiment of the other components of the lateral extension device according to the invention; -
Figure 3 is a schematic perspective view that shows an example of application of the lateral extension device according to the invention; -
Figure 4 is a partial view in elevation at a larger scale of a first detail ofFigure 3 ; -
Figure 5 is a view similar to that ofFigure 4 of a second detail ofFigure 3 ; -
Figure 6 shows at a larger scale a detail ofFigure 5 ; -
Figure 7 is a plan view ofFigure 6 ; -
Figure 8 is a front elevation ofFigure 6 ; -
Figure 9 is a further enlargement of a part ofFigure 6 ; -
Figure 10 is a schematic view in elevation that shows a further example of application of the extension device according to the invention; and -
Figure 11 shows a detail ofFigure 10 at a larger scale. -
Figures 1 to 4 are schematic illustrations of four examples of sleepers for railway tracks that can be used as first component of the lateral extension device according to the invention. These sleepers, referred to as "cable-duct sleepers", are designated as T1, T2, T3 and T4 and can be made of pre-stressed concrete, composite materials or steel, and have one or two (or even more) longitudinal through cavities C with circular, quadrangular or polygonal cross section. They are prearranged at the top for fixing retention plates P for attachments for the rails R (Figure 3 ) of a railway track. The attachments can be of the traditional K type or else, more conveniently, can be of the "Pandrol" or "Vossloch" type. - Sleepers of this sort will be provided not necessarily along the entire line, but only in the areas in which the use of lateral extension devices according to the invention is required.
- With reference now to
Figure 2 , the second component of the lateral extension device consists in an assembly including at least one or two (or more) entirely or partially threaded bars, designed to be inserted within the through cavity or through cavities C of the sleeper T, and a supporting mechanism carried by one end or each end of the at least one bar, projecting from the sleeper T. - In the case of the embodiment described in the drawings there are provided two bars B and B1 inserted through two respective cavities C of the sleeper T and both provided with threaded ends Bf fixed to the opposite ends of the sleeper T by means of nuts D, with the interposition of
washers 2,cup springs 3,distribution plates 4, and corresponding protections made ofelastomeric material 5. - The cup springs 3, set between the
distribution plates 4 and the fixing nuts D, have the function of compensating for the typical inclination of the end or each end of the sleeper T with respect to the bars B, B1 inserted through the cavities C. - The threaded ends Bf of the bars B, B1 projecting from one end - in the case of the example represented - and also from the other end of the sleeper T function as fixing members, via further nuts D, of corresponding generally bracket-shaped supporting
elements 6. It should be noted that the arrangement described herein could be limited to just one of the ends of the sleeper T. - Each
bracket 6, thewall 6a of which is perforated for passage of the threaded ends Bf of the two bars B, B1 in turn supports areaction arm 7 provided at the bottom with anadjustable extension 8. Thereaction arm 7 is connected to thebracket 6 in an articulated way about apin 9, which is set transverse to the sleeper T, i.e., parallel to the rail R. - The
arm 7 can face downwards, as in the case ofFigures 2 and5 and the right-hand part ofFigure 3 , or else upwards as in the case ofFigure 4 and in the left-hand part ofFigure 3 , or else again it can be generally horizontal, as in the case of the embodiment ofFigure 10 . Of course, various arrangements and combinations are possible, according to the conformation of the terrain alongside the railway track, possibly also different for the right-hand end and left-hand end of the sleepers T, as is precisely the case represented inFigure 3 . - The
reaction arm 7 is adjustable angularly with respect to thebracket 6 about thecorresponding pin 9, by means ofadjustment bolts 10 carried by saidbracket 6 and reacting against anappendage 7a of thearm 7. In turn, the position of theextension 8 with respect to thereaction arm 7 can be adjusted viafixing bolts 11. - The
extension 8 in turn bears a possible element S for support and connection of a service device, constituted, for example, by a platform SP and/or by a side barrier L, etc.: service devices that can typically be installed by means of the lateral extension device according to the invention can include treading surfaces and other platforms, protection and sound-absorbing walls, signalling devices, mains, auxiliary rails, barriers, etc. - The
extension 8 can be provided with one or more adjustment holes g for fixing the supporting element S, where present. - The arrangement of the
arm 7 inclined upwards (Figures 2 ,4 and left-hand part ofFigure 3 ) and the one facing downwards (Figure 5 and right-hand part ofFigure 3 ) enable positioning of the service device carried by the lateral extension device according to the invention, respectively above or beneath the plane of the rails R. The embodiment represented inFigure 10 , where, as has been said, thearm 7 is substantially horizontal, enables positioning of the service device (for example, constituted by the platform SP) a little above or beneath the plane of the rails R. In this case, there can be conveniently associated to thearm 7 or to eacharm 7 avertical column 12 for resting on the ground, adjustable both in height via the telescopic arrangement (illustrated more clearly inFigure 11 ) and with respect to thearm 7, via a series ofholes 13 with which the latter is equipped. - It will emerge clearly from the foregoing description that the lateral extension device according to the invention is simple and inexpensive to produce and lay down, and with the use of "cable duct" sleepers T it is particularly simple and convenient. Once the bar or bars B, B1 has/have been inserted through the cavity or cavities C of the sleeper T and then blocked against the ends of the sleeper T, the bracket or each
bracket 6 is installed and locked via the nuts D, and then the reaction arm or eachreaction arm 7 is installed with thepossible extension 8, and finally angularly adjusted via thebolts 10 or else via thecolumns 12. - In the installed condition, the load applied to the lateral extension device according to the invention is transmitted directly to the sleepers T, without any effect on the attachments of the rails R.
- Of course, the details of construction may vary widely with respect to what is described and illustrated herein, without thereby departing from the scope of the present invention as defined in the ensuing claims.
Claims (11)
- A lateral extension device for railway tracks including sleepers (T) provided with attachments (P) for the rails (R), characterized in that:- said sleepers (T) have at least one through longitudinal cavity (C); and- said at least one cavity (C) receives a bar or a respective bar (B, B1) fixed to the ends of the sleeper (T) and projecting laterally thereto for attachment of at least one supporting bracket (6).
- The device according to Claim 1, characterized in that connected to said supporting bracket (6) is a supporting arm (7) for a service device (SP, L).
- The device according to Claim 2, characterized in that said supporting arm (7) is connected to said bracket (6) in an adjustable way.
- The device according to Claim 3, characterized in that said supporting arm is articulated to said bracket (6) about an axis (9) generally parallel to the rail (R).
- The device according to any one of Claims 2 to 4, characterized in that said arm (7) is of adjustable length.
- The device according to any one of Claims 2 to 5, characterized in that said arm (7) is inclined upwards.
- The device according to any one of Claims 2 to 5, characterized in that said arm (7) is inclined downwards.
- The device according to any one of Claims 2 to 5, characterized in that said arm (7) is substantially horizontal.
- The device according to any one of Claims 2 to 8, characterized in that said arm (7) is provided with an adjustable extension (8).
- The device according to any one of Claims 2 to 9, characterized in that said arm (7) is provided with an adjustable column (12) for resting on the ground.
- The device according to any one of the preceding claims, characterized in that said bars (B, B1) are two in number and are inserted within two corresponding cavities (C) of the sleeper.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000342A ITTO20070342A1 (en) | 2007-05-16 | 2007-05-16 | EXTENSION MECHANISM APPLIED TO THE RAILWAY CROSS IN C.A.P. AND OR IN STEEL, PREPARED WITH PASSING LOMGITUDINAL HOLES. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2003247A2 true EP2003247A2 (en) | 2008-12-17 |
EP2003247A3 EP2003247A3 (en) | 2009-09-16 |
Family
ID=39855107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08156384A Withdrawn EP2003247A3 (en) | 2007-05-16 | 2008-05-16 | Lateral extension device for railway tracks |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2003247A3 (en) |
IT (1) | ITTO20070342A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2506894A (en) * | 2012-10-11 | 2014-04-16 | Nicholas James Marshall | Railway structure mounting system and method |
EP2789737A1 (en) * | 2013-04-11 | 2014-10-15 | Osborn International AB | Wind, snow and sand protecting device for railways |
WO2018046897A1 (en) * | 2016-09-06 | 2018-03-15 | Lucas Innovations Limited | A walkway |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1081286B1 (en) | 1999-08-03 | 2005-11-02 | F.lli Dematteis S.r.l. | Support device for rails of railway tracks |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9417106U1 (en) * | 1994-10-25 | 1995-03-09 | Beil, Siegfried, 69469 Weinheim | Kit for shutting off track systems from construction sites |
-
2007
- 2007-05-16 IT IT000342A patent/ITTO20070342A1/en unknown
-
2008
- 2008-05-16 EP EP08156384A patent/EP2003247A3/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1081286B1 (en) | 1999-08-03 | 2005-11-02 | F.lli Dematteis S.r.l. | Support device for rails of railway tracks |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2506894A (en) * | 2012-10-11 | 2014-04-16 | Nicholas James Marshall | Railway structure mounting system and method |
WO2014057281A1 (en) * | 2012-10-11 | 2014-04-17 | Nicholas James Marshall | Improvements relating to railway structures |
GB2521981A (en) * | 2012-10-11 | 2015-07-08 | Nicholas James Marshall | Improvements relating to railway structures |
EP2789737A1 (en) * | 2013-04-11 | 2014-10-15 | Osborn International AB | Wind, snow and sand protecting device for railways |
WO2014166559A1 (en) * | 2013-04-11 | 2014-10-16 | Osborn International Ab | Wind, snow and sand protecting device for railways |
AU2013386194A1 (en) * | 2013-04-11 | 2015-10-08 | Osborn International Ab | Wind, snow and sand protecting device for railways |
AU2013386194B2 (en) * | 2013-04-11 | 2016-06-30 | Osborn International Ab | Wind, snow and sand protecting device for railways |
US9702092B2 (en) | 2013-04-11 | 2017-07-11 | Osborn International Ab | Wind, snow and sand protecting device for railways |
WO2018046897A1 (en) * | 2016-09-06 | 2018-03-15 | Lucas Innovations Limited | A walkway |
Also Published As
Publication number | Publication date |
---|---|
ITTO20070342A1 (en) | 2008-11-17 |
EP2003247A3 (en) | 2009-09-16 |
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