EP0710308B1 - Dispositif d'ancrage d'une attache elastique de rail - Google Patents
Dispositif d'ancrage d'une attache elastique de rail Download PDFInfo
- Publication number
- EP0710308B1 EP0710308B1 EP94922294A EP94922294A EP0710308B1 EP 0710308 B1 EP0710308 B1 EP 0710308B1 EP 94922294 A EP94922294 A EP 94922294A EP 94922294 A EP94922294 A EP 94922294A EP 0710308 B1 EP0710308 B1 EP 0710308B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- helicoidal
- female
- male
- face
- female member
- 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
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
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
- E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
- E01B9/14—Plugs, sleeves, thread linings, or other inserts for holes in sleepers
Definitions
- the present invention relates to a device for anchoring a fastener elastic rail in a railway sleeper.
- anchoring systems comprising a male element threaded to be fixed by screwing in a female threaded element internal or threaded, incorporated in the crosspiece.
- This female element is usually made of a plastic sheath inserted in the crosspiece during the molding of the latter. But this sheath resists badly the permanent tensile force exerted by the male element, which results in a creep of the material constituting the sheath, that is to say a deformation continuous resulting in a decrease in the clamping force and therefore compromising the effectiveness of the rail fastener.
- FR-A-2 677 677 describes a device for anchoring a fastener rail elastic in a cross member comprising a male thread element external intended to be fixed by screwing in a female element to internal thread incorporated in the cross member, and provided with a helical element integral with its external lateral face, the internal diameter of the turns is less than or equal to the outside diameter of the thread of the male element.
- this game could be filled either by concrete or by thicknesses of the wall of the female element. But in the first case, the interstices to be filled are small and it is then very difficult to control their filling with concrete. In the second case, the manufacturing of the female element is made more complex and more expensive due to dimensional control.
- the object of the present invention is to resolve satisfactorily technical problems resulting from the above drawbacks.
- a device for anchoring an elastic rail fastener in a sleeper comprising a male element with external thread intended to be fixed by screwing into a female element with internal thread incorporated in the cross member, and provided with a helical element integral with its lateral face external, whose internal diameter of the turns is less than or equal to outside diameter of the thread of the male element, characterized in that said helical element consists of a wire whose cross-section parallelogram provides overlap in mounting position parallel of the faces of the threads of the helical element by the threads vis-à-vis the male element as well as mutual contact between said element helical and the entire external surface of the threads of the female element.
- the outer upper face threads of the helical element is inclined relative to the axis of the element male.
- the upper external face of the helical element is parallel to its inner underside.
- the section of the element helical is a rhombus.
- said helical element is screwed onto the body of said female element.
- the height of said element female is greater than or equal to the height of the helical element.
- the device comprises in in addition to a flange intended to be housed between the upper face of the crosspiece and the upper edge of the female element.
- said collar has a sealing wall forming sealing capsule and capable of being perforated by introduction of the male element.
- the female element and the element helical are provided with a coating of compressible material ensuring the connection with the crosspiece.
- the device comprises also anti-rotation fins extending longitudinally and the outer edge is located on or inside the cylinder-envelope of the female element with the helical element or the coating.
- the helical element is metallic and the female element is made of insulating plastic.
- the device of the invention makes it possible to limit creep while increasing the range of the external thread of the male element on the thread internal of the female element, which improves the resistance to tearing.
- the device of the invention can be easily adapted to male elements of different lengths by adjusting the height of the element helical and using a single female element.
- the anchoring device shown in Figures la and 1b is intended for anchoring a rail fastener (not shown) in a crosses railway T. It includes a male thread element external 1 intended to be fixed by screwing in a female element or threaded sheath 2 in insulating plastic material incorporated in the cross member T, generally during the molding of the latter.
- the female element 2 comprises an element helical 20 secured to its external lateral face, preferably by screwing on the same body of said element 2.
- the connection between the element female 2 and the concrete of the cross T is thus ensured by means of the helical element 20.
- the internal diameter of the turns of the helical element 20 is several millimeters smaller than the outside diameter of the thread of the male element 1. In this way, in the mounting position, obtains an axial overlap of the faces opposite the threads respectively of the helical element 20 and of the male element 1. This covering guarantees excellent mechanical resistance in the axial direction. Under static or dynamic loading, the effort of the male element 1 is thus transmitted to the helical element 20 via the wall side of the female element 2 which is formed of a thickness relatively low elastic elastically deformable material does exhibiting a low sensitivity to creep.
- the male element 1 is blocked upwards thanks to the covering previous and any break in the anchor is thus avoided for values normal effort in the area under consideration. It is also planned to leave, in the radial direction in the mounted position, a clearance between the face side of the male element 1 and the internal face of the female element 2 of in order to compensate for a possible manufacturing dispersion or else a thermal expansion.
- the bottom of the female element 2 is blind as shown in Figures 1a and 1b but can also be opening out according to embodiments not shown.
- the helical element 20 is consisting of a metal wire wound in a helix around an axis XX 'whose section is in parallelogram and preferably in rhombus.
- the section in diamond allows good functional cooperation between the thread of the male element 1 and the profile of the helical element 20. It allows also to produce the side wall of the female element 2 with a substantially uniform thickness.
- the tips of the cross section rhombus which are oriented radially towards the cross T in the concrete participate in the retention of the female element 2 in its housing.
- the height of the female element 2 is greater than or equal to the height of the helical element 20 when it is screwed onto the body of said element 2. It is clear however that, given its helical winding, the element 20 has a certain elasticity, especially in the direction XX '.
- the upper edge of said element 2 is flush with the upper face of the cross member T.
- a flange 12 as shown in the figure 3.
- the collar 12 then constitutes an extension of the female element 2 in coming to connect to its upper edge.
- she does not participate in anchoring since it has no thread.
- the element helical 20 is not in screwing contact with the flange 12.
- a cylindrical profile will be given or frustoconical at the mouth of the housing so as not to set up the flange 12 only after molding of the cross member and drying of the concrete. So the risks of cracking due to the phenomenon of shrinkage of the concrete are eliminated.
- the collar 12 advantageously comprises a sealing wall 12a forming sealing capsule.
- the wall 12a is capable of being perforated by introduction of the lower end of the male element 1 during assembly.
- the female element 2 and the helical element 20 are provided with a coating 22 of compressible material (such as certain elastomeric or plastic materials) which ensures the connection with the concrete of the cross member T.
- This coating 22 is produced for example by overmolding and absorbs the expansion differences between the material of the female element 2 and / or of the helical element 20 and the concrete of the crosses T.
- the face outer side of the coating 22 has fins 220 which extend in a longitudinal direction discontinuously between two adjacent turns of the helical element 20. These fins have for function to prohibit rotation of the lower part of the device anchor with respect to the cross member T.
- the fins 220 are made by molding or overmolding and have a radial width less than or equal to the depth of the groove in propeller delimited by the envelope cylinder of the coating 22. In the case where no coating is provided, the radial width of the fins 220 is less than or equal to the projecting part of the helical element 20. In in all cases, the outer edge of the fins is located on or inside the cylinder-envelope of the lower part of the anchoring device. Optionally, the device will include several series of fins 220 aligned or offset on the outer side face.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Dowels (AREA)
- Railway Tracks (AREA)
- Chutes (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Vibration Prevention Devices (AREA)
- Vehicle Body Suspensions (AREA)
- Gear-Shifting Mechanisms (AREA)
- Chain Conveyers (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Bolts, Nuts, And Washers (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Clamps And Clips (AREA)
- Installation Of Indoor Wiring (AREA)
- Window Of Vehicle (AREA)
- Supports For Pipes And Cables (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Description
- les figures 1a et 1b représentent des vues de face avec coupes verticales partielles d'un premier mode de réalisation du dispositif d'ancrage de l'invention, respectivement en position démontée et en position montée ;
- la figure 2 représente une vue de face de l'élément hélicoïdal de l'invention;
- la figure 3 représente une vue en coupe verticale partielle d'un second mode de réalisation de l'invention ;
- la figure 4 représente une vue de face d'un autre mode de réalisation.
Claims (12)
- Dispositif d'ancrage d'une attache élastique de rail dans une traverse (T) comprenant un élément mâle à filetage externe (1) destiné à venir se fixer par vissage dans un élément femelle à filetage interne (2) incorporé dans la traverse (T), et pourvu d'un élément hélicoïdal (20) solidaire de sa face latérale externe, dont le diamètre intérieur des spires est inférieur ou égal au diamètre extérieur du filetage de l'élément mâle (1), caractérisé en ce que ledit élément hélicoïdal (20) est constitué d'un fil dont la section en forme de parallélogramme permet d'obtenir en position de montage un recouvrement parallèle des faces des filets de l'élément hélicoïdal (20) par les filets en vis-à-vis de l'élément mâle (1) ainsi qu'un contact mutuel entre ledit élément hélicoïdal et toute la surface externe des filets de l'élément femelle (2).
- Dispositif selon la revendication 1, caractérisé en ce que la face supérieure extérieure des filets de l'élément hélicoïdal (20) est inclinée par rapport à l'axe de l'élément mâle (1).
- Dispositif selon la revendication 1 ou 2, caractérisé en ce que la face supérieure extérieure de l'élément hélicoïdal (20) est parallèle à sa face inférieure intérieure.
- Dispositif selon l'une des revendications précédentes, caractérisé en ce que la section de l'élément hélicoïdal (20) est un losange.
- Dispositif selon l'une des revendications précédentes, caractérisé en ce que ledit élément hélicoïdal (20) est vissé sur le corps dudit élément femelle (2).
- Dispositif selon l'une des revendications précédentes, caractérisé en ce que la hauteur dudit élément femelle (2) est supérieure ou égale à la hauteur de l'élément hélicoïdal (20).
- Dispositif selon la revendication 6, caractérisé en ce qu'il comporte en outre une collerette (12) destinée à venir se loger entre la face supérieure de la traverse (T) et le bord supérieur de l'élément femelle (2).
- Dispositif selon la revendication 7, caractérisé en ce que ladite collerette (12) comporte une paroi obturante (12a) formant capsule d'étanchéité et susceptible d'être perforée par introduction de l'élément mâle (1).
- Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'élément femelle (2) et l'élément hélicoïdal (20) sont pourvus d'un enrobage (22) en matériau compressible assurant la liaison avec la traverse (T).
- Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comporte également des ailettes (220) anti-rotation s'étendant longitudinalement et dont le bord extérieur est situé sur ou à l'intérieur du cylindre-enveloppe de l'élément femelle (2) avec l'élément hélicoïdal (20) ou de l'enrobage (22).
- Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu que l'élément hélicoïdal (20) est métallique et l'élément femelle (2) est en matière plastique isolante.
- Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comporte un jeu radial entre la face latérale de l'élément mâle (1) et la face interne de l'élément femelle (2).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9309109 | 1993-07-23 | ||
FR9309109A FR2708012B1 (fr) | 1993-07-23 | 1993-07-23 | Dispositif d'ancrage d'une attache élastique de rail. |
PCT/FR1994/000920 WO1995003451A1 (fr) | 1993-07-23 | 1994-07-22 | Dispositif d'ancrage d'une attache elastique de rail |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0710308A1 EP0710308A1 (fr) | 1996-05-08 |
EP0710308B1 true EP0710308B1 (fr) | 1998-05-06 |
Family
ID=9449577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94922294A Expired - Lifetime EP0710308B1 (fr) | 1993-07-23 | 1994-07-22 | Dispositif d'ancrage d'une attache elastique de rail |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0710308B1 (fr) |
AT (1) | ATE165882T1 (fr) |
DE (1) | DE69410097T2 (fr) |
DK (1) | DK0710308T3 (fr) |
DZ (1) | DZ1803A1 (fr) |
ES (1) | ES2119214T3 (fr) |
FR (1) | FR2708012B1 (fr) |
GR (1) | GR3027588T3 (fr) |
HU (1) | HU218802B (fr) |
MA (1) | MA23281A1 (fr) |
RO (1) | RO116023B1 (fr) |
TN (1) | TNSN94083A1 (fr) |
WO (1) | WO1995003451A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011055797A1 (de) | 2011-11-29 | 2013-05-29 | Track Tec GmbH | Befestigungsvorrichtung mit Dübel und Bewehrung |
ITBS20130132A1 (it) * | 2013-09-25 | 2015-03-26 | Essebi Plast S R L | Tappo di protezione del tassello di una traversina ferroviaria e traversina ferroviaria |
RU185598U1 (ru) * | 2018-09-07 | 2018-12-11 | Акционерное Общество "Комплексное Сервисное Обслуживание Пути" | Железобетонная шпала |
RU202904U1 (ru) * | 2020-07-21 | 2021-03-12 | Открытое акционерное общество "Северсталь-метиз" | Спираль для армирования железобетонного подрельсового основания в зоне установки дюбеля |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB249773A (en) * | 1925-11-16 | 1926-04-01 | Edmond Francois Leopold Vagneu | Improvements in or relating to means for securing railroad lines to sleepers |
FR686672A (fr) * | 1929-12-14 | 1930-07-29 | Perfectionnements des attaches pour traverses en béton armé | |
FR2315568A1 (fr) * | 1975-06-25 | 1977-01-21 | Vape Sa Ets | Dispositif de fixation a vis dans un element de construction en matiere agglomeree |
FR2677677B1 (fr) * | 1991-06-17 | 1996-07-05 | Urba | Insert pour ancrage de fixation de traverses de chemin de fer. |
-
1993
- 1993-07-23 FR FR9309109A patent/FR2708012B1/fr not_active Expired - Fee Related
-
1994
- 1994-07-22 ES ES94922294T patent/ES2119214T3/es not_active Expired - Lifetime
- 1994-07-22 WO PCT/FR1994/000920 patent/WO1995003451A1/fr active IP Right Grant
- 1994-07-22 EP EP94922294A patent/EP0710308B1/fr not_active Expired - Lifetime
- 1994-07-22 RO RO96-00120A patent/RO116023B1/ro unknown
- 1994-07-22 MA MA23596A patent/MA23281A1/fr unknown
- 1994-07-22 DK DK94922294T patent/DK0710308T3/da active
- 1994-07-22 DE DE69410097T patent/DE69410097T2/de not_active Expired - Lifetime
- 1994-07-22 HU HU9600144A patent/HU218802B/hu unknown
- 1994-07-22 AT AT94922294T patent/ATE165882T1/de not_active IP Right Cessation
- 1994-07-23 DZ DZ940089A patent/DZ1803A1/fr active
- 1994-07-26 TN TNTNSN94083A patent/TNSN94083A1/fr unknown
-
1998
- 1998-08-05 GR GR980401774T patent/GR3027588T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
RO116023B1 (ro) | 2000-09-29 |
WO1995003451A1 (fr) | 1995-02-02 |
ATE165882T1 (de) | 1998-05-15 |
MA23281A1 (fr) | 1995-04-01 |
GR3027588T3 (en) | 1998-11-30 |
DE69410097T2 (de) | 1998-12-17 |
FR2708012B1 (fr) | 1995-10-20 |
FR2708012A1 (fr) | 1995-01-27 |
TNSN94083A1 (fr) | 1995-04-25 |
HU218802B (hu) | 2000-12-28 |
DZ1803A1 (fr) | 2002-02-17 |
EP0710308A1 (fr) | 1996-05-08 |
DE69410097D1 (de) | 1998-06-10 |
HUT75632A (en) | 1997-05-28 |
HU9600144D0 (en) | 1996-03-28 |
DK0710308T3 (da) | 1999-03-15 |
ES2119214T3 (es) | 1998-10-01 |
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