EP2542717B1 - Boulon-crochet pour fixation de rails sur des traverses creuses - Google Patents

Boulon-crochet pour fixation de rails sur des traverses creuses Download PDF

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Publication number
EP2542717B1
EP2542717B1 EP10707004.7A EP10707004A EP2542717B1 EP 2542717 B1 EP2542717 B1 EP 2542717B1 EP 10707004 A EP10707004 A EP 10707004A EP 2542717 B1 EP2542717 B1 EP 2542717B1
Authority
EP
European Patent Office
Prior art keywords
hook
threaded
bolt
receiving
receiving chamber
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.)
Not-in-force
Application number
EP10707004.7A
Other languages
German (de)
English (en)
Other versions
EP2542717A1 (fr
Inventor
Eugen Gart
Sebastian Schäfer
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 Werke GmbH
Original Assignee
Vossloh Werke GmbH
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
Application filed by Vossloh Werke GmbH filed Critical Vossloh Werke GmbH
Publication of EP2542717A1 publication Critical patent/EP2542717A1/fr
Application granted granted Critical
Publication of EP2542717B1 publication Critical patent/EP2542717B1/fr
Not-in-force legal-status Critical Current
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
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/32—Fastening on steel sleepers with clamp members
    • E01B9/34—Fastening on steel sleepers with clamp members by resilient steel clips

Definitions

  • the invention relates to a hook bolt for rail mounting on hollow sleepers, especially steel sleepers, and a rail fastening system using such hook bolts.
  • Common railway sleepers may be made of either solid material, e.g. Wood or concrete, or else designed as hollow sleepers. While in the use of wooden sleepers, the rail fastening on the threshold is often done by directly screwing fasteners into the wood material, anchors are poured in concrete sleepers in the concrete material, in turn, are screwed suitable fastening screws a rail fastening system.
  • hook bolts in the prior art are made of cast iron. The high side forces, especially in heavy load, the lower, hook-shaped part of the bolt can accommodate without problems due to the structural design.
  • a hook bolt is used for rail mounting on hollow sleepers. With the help of bolts, the hook bolt is deformed and pulled against the underside of the threshold plate.
  • the DE 46755 C represents the closest prior art.
  • the invention has for its object to provide a hook bolt for rail mounting, which withstands higher loads at low cost manufacturing.
  • the hook bolt for fastening rails on hollow sleepers comprises an engagement element made of cast metal, which comprises a hook-shaped insertion section and a support section, which is formed with a receiving space for receiving a threaded element.
  • the threaded element has a threaded bolt and a receiving shoe, wherein the receiving shoe is dimensioned so as to be positively inserted into the receiving space of the support portion.
  • the receiving space of the engagement member according to the invention is designed so that the receiving shoe of the threaded element can be inserted by a lateral movement in the plane perpendicular to the longitudinal axis of the threaded bolt in the receiving space.
  • a simple, horizontal translational movement when inserting the pick-up shoe is both easy to perform, but also has the advantage that when in the mounted state of the rail mounting the pick-up shoe is pulled relative to the receiving space in the vertical direction up, in this way in addition to the positive connection also forms a frictional connection between the top of the receiving shoe in the installed position and correspondingly shaped upper, inner wall portions of the receiving space.
  • Such a frictional connection has the additional advantage that automatically a relative movement between the receiving shoe and the receiving space is counteracted in the horizontal direction and thus an automatic release of the connection between the engagement element and the threaded element is prevented.
  • the hook bolt according to the invention is thus made of two parts.
  • the engagement element is connected to the threaded element by the receiving shoe of the threaded element is positively inserted into the receiving space of the engagement member.
  • the engagement element made of cast metal which due to the complex shape of the hook-shaped Insertion section is advantageous, especially since the engagement element due to the structural design and high side forces, as they occur especially in heavy load, can easily accommodate.
  • the threaded element is preferably made of steel, which has the advantage that the threaded element can absorb very high loads with a threaded bolt dimensioned in the usual range, so that the hook bolt according to the invention can absorb significantly increased lateral forces compared to a hook bolt made of cast metal known in the prior art ,
  • the rail fastening system comprises at least one hollow sleeper with passage openings and hook bolts according to the invention, which engage with their hook-shaped insertion section into the passage openings of the at least one hollow sleeper.
  • the rail fastening system further comprises angled guide plates, through which each of the threaded bolt of the hook bolt passes as well as clamping clamps, which are fixed in each case by fastening elements on the threaded bolt.
  • the threaded element consists of steel.
  • a high load can be absorbed in this way with usual dimensioning of the threaded bolt.
  • other materials are conceivable that are available at low cost and have increased strength values compared with cast metal.
  • the hook-shaped engagement element consists of gray cast iron or Kugelgrafitguss.
  • the hook-shaped insertion portion of the engagement element on a locking lug which has a substantially oriented in a further plane perpendicular to the longitudinal axis of the threaded bolt stop surface.
  • a locking lug can abut adjacent to the passage opening after the proper insertion of the hook-shaped insertion section through a suitably dimensioned passage opening in the threshold at the inner cavity of the hollow sleeper ago upper wall and therefore provides additional security against the unintentional leakage of the insertion of the passage opening the hollow threshold is.
  • the selected shape of a locking lug supports the insertion of the insertion through the passage opening in the inner cavity of the hollow sleeper, while the reverse path is desired prevented by the stop surface.
  • the locking lug is formed on the outer radius of the substantially arcuate insertion section.
  • a contact surface between the male and female walls of the hollow sleeper which in addition to an improved introduction of the forces in the material of the hollow sleeper above all represents the most effective position to an undesirable To prevent slippage of the insertion from the hollow sleeper.
  • the hook bolt in addition to a plastic cover which extends over the support portion and arranged in the receiving space receiving shoe and having a passage opening for the threaded bolt.
  • a plastic cover has several advantages. On the one hand, it is used for electrical insulation, which is of great importance in relation to the use of metal sleepers. Another advantage is that the penetration of water into the hollow sleeper is prevented or at least made more difficult.
  • the essential advantage of the plastic cover is to prevent slipping out of the threaded element and in particular of the pick-up shoe from the receiving space in the unloaded state of the hook bolt.
  • the plastic cover has a passage opening for the threaded bolt, but does not allow any significant sliding movement between the threaded member and the engaging member and therefore prevents the threaded member from being able to disengage from the engaging member.
  • Fig. 1 shows a rail fastening system using hook bolts, wherein the in the plane of the Fig. 1 on the left is shown in the mounting position and in the plane of the Fig. 1 Right illustrated rail fastening is shown in the pre-assembly.
  • Fig. 1 shows only the relevant here, upper wall portion of a hollow sleeper 12, the passage openings 13, which serve to receive an engaging member 20 of a hook bolt 40.
  • the railroad track 22 is placed on the threshold 12 via an elastic rail intermediate layer 9 made of plastic and is laterally fixed by guide plates 10 and 11.
  • the guide plates are made of plastic for the purpose of sufficient electrical insulation.
  • In the guide plates are openings for the passage of the Threaded bolt of the hook bolt 40, on which a fastening nut 8 is screwed to secure a tensioning clamp 4, optionally with the interposition of a Isolierkragenbuchse 6 made of plastic, which is plugged onto the threaded bolt and optionally to the fastening nut 8 and towards the tensioning clamp 4 through additional steel washers and 7 can be added.
  • the shaping of the guide plates and tension clamps in Fig. 1 are only to be understood as an example and may have a different, coordinated geometry in the same way.
  • Essential is the principle of the hook bolt with an entering into the cavity of the hollow sleeper and through the passage opening 13 engaging portion 20 which is arcuate and rests against the underside of the top wall of the hollow sleeper and in this way allows the tensioning of the tension clamp 4 against the rail.
  • the one on the left side of the Fig. 1 shown rail fastening is in the assembled state, while the on the right side in Fig. 1 shown rail fastening in the pre-assembled state, in which the fastening nut 8 has not yet been tightened and in which the tensioning clamp 4 does not yet rests on the foot of the railroad track 22.
  • Fig. 2 and 3 show the two separate components of the hook bolt according to the invention.
  • the threaded element 24 has a threaded bolt 30 with common dimensions and common metric thread, such as an M20 external thread.
  • the thread passes over a transition region in a square section 28, to which a receiving shoe 26 connects, which is dimensioned and designed to be inserted into the receiving space of the engagement element described later.
  • the threaded element is preferably made of steel and may be forged in relation to its raw form, whereupon in final manufacturing steps the exact Refurbished shape of the pick-up shoe 26 and the external thread on the threaded bolt 30 can be cut.
  • the second element of the hook bolt according to the invention is the engagement element 18, which consists of cast metal, preferably gray cast iron or Kugelgrafitguss. Cast material has proven to be very favorable due to its high toughness.
  • the engagement member 18 consists of a male portion 20 and a support portion 21 having a receiving space 22 which is dimensioned and designed so that the receiving shoe 26 of the threaded member 24 can be positively received in this.
  • the insertion portion 20 is substantially arcuate in shape and has a first abutment surface 19, which, as in Fig. 1 it can be seen, in the assembled state of the rail fastening system against the inside of the passage opening 13 surrounding wall of the hollow sleeper 12 is present.
  • the insertion portion 20 is provided with a locking lug 23, which is also provided with a stop surface 23a, which rests in the installed state, as well as the surface 19 described above, against the underside of the upper wall of the hollow sleeper 12.
  • the support portion 21 In the inserted state of the support portion 21 is used to rest on the top of the hollow sleeper.
  • FIG. 4 and FIG. 5 show the hook bolt 40 according to the invention in the assembled state, ie after insertion of the threaded member 24 in the engaging member 18.
  • FIG Fig. 5 can be seen as the receiving shoe 26 of the threaded member 24 is positively received in the receiving space 22 and how the circular segment-shaped cross-sectional shape of the pick-up shoe 26 in the present example with a small clearance in the complementary cross-sectional shaped receiving space 22 engages and is held in this form-fitting manner.
  • the pick-up shoe 26 is replaced by a horizontal Moving movement in the direction of arrow A (see Fig. 4 ) is inserted into the receiving space 22 of the engagement element 21.
  • the threaded element 24 can also be removed from the engagement element 18 again only by a displacement movement opposite to the direction of the arrow A.
  • Fig. 6 shows in plan view the hook bolt 40 and makes in particular the shape of the support portion 21 as well as the opening shape of the receiving space 22 clearly.
  • FIGS. 7 and 8 differs from the one after 4 and 6 merely in that in addition a cover member 50 is provided, which extends over the support portion 21 and the receiving space 22 and, as seen Fig. 8 it can be seen, an opening 52 which serves the passage of the threaded bolt 30.
  • a cover member 50 is provided, which extends over the support portion 21 and the receiving space 22 and, as seen Fig. 8 it can be seen, an opening 52 which serves the passage of the threaded bolt 30.
  • the plastic cover has a downwardly extending nose 54 which, as shown by a differently shaped cover in Fig. 1 it can be seen, engages in the passage opening 13 of the hollow sill 12 and at least partially closes after the proper insertion of the hook bolt remaining free area of the passage openings.
  • the nose 54 thus has the additional function of preventing displacement of the hook bolt within the passage opening of the hollow sleeper, which assists the secure positioning of the hook bolt.
  • the nose 54 has a cross-sectional shape in order to fill in the best possible way the free opening cross-section of the hollow sleeper and to minimize the range of motion of the hook bolt. This also serves to counteract premature wear. in the Embodiment after Fig. 9
  • the nose has a moon-shaped cross-sectional shape.
  • the plastic cover 50 in addition to the function of electrical insulation and the above-mentioned function, to prevent the emergence of the pick-up shoe from the receiving space, nor the additional task of preventing the penetration of moisture into the cavity of the hollow sleeper, or at least reduce.
  • the individual parts can be manufactured inexpensively and significantly increase the transferable loads compared to a hook bolt made entirely of cast iron with a simple design. For this reason, the hook bolt according to the invention is also at high lateral forces, as they occur especially in heavy load, can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Bridges Or Land Bridges (AREA)
  • Connection Of Plates (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Claims (8)

  1. Boulon à crochet servant à la fixation de rails sur des traverses creuses (12), en particulier sur des traverses en acier, comprenant :
    - un élément de prise (18) pourvu d'une section d'emboîtement (20) en forme de crochet et un élément fileté (24) pourvu d'un boulon fileté (30), l'élément de prise (18) comprenant une section de réception (21), qui se présente avec un espace de logement (22) servant à loger l'élément fileté (24), l'élément fileté (24) présentant un patin de logement (26), qui se trouve dans l'espace de réception (22),
    caractérisé en ce que :
    - l'élément de prise (18) est constitué d'un métal de fonte et
    - le patin de logement (26) est dimensionné de manière à pouvoir être inséré par complémentarité de forme dans l'espace de logement (22) de la section de réception (21),
    - l'espace de réception (22) est configuré de telle manière que le patin de réception (26) peut être inséré par coulissement dans l'espace de réception (22) par un déplacement coulissant horizontal dans un sens lorsque la traverse creuse (12) associée est disposée à l'horizontale et ne peut être retiré que par un déplacement coulissant dans le sens opposé.
  2. Boulon à crochet selon la revendication 1, caractérisé en ce que :
    l'élément fileté (25) est constitué d'acier.
  3. Boulon à crochet selon la revendication 1 ou la revendication 2,
    caractérisé en ce que :
    l'élément de prise (20) en forme de crochet est constitué de fonte grise ou de fonte graphitée sphéroïdale.
  4. Boulon à crochet selon l'une quelconque des revendications précédentes,
    caractérisé en ce que :
    l'espace de logement (22) de l'élément de prise (18) est configuré de telle sorte que le patin de logement (26) de l'élément fileté (24) puisse être enfilé dans l'espace de logement (22) perpendiculairement à l'axe longitudinal du boulon fileté (30).
  5. Boulon à crochet selon l'une quelconque des revendications précédentes,
    caractérisé en ce que :
    la section d'emboîtement (20) en forme de crochet présente un ergot de blocage (23), qui possède une surface de butée (23a) orientée essentiellement dans un autre plan perpendiculairement à l'axe longitudinal du boulon fileté (30).
  6. Boulon à crochet selon la revendication 5,
    caractérisé en ce que :
    l'ergot de blocage (23) est formé au niveau du rayon extérieur de la section d'emboîtement (20) essentiellement en forme d'arc.
  7. Boulon à crochet selon l'une quelconque des revendications précédentes, comprenant par ailleurs un recouvrement en plastique (50), qui s'étend sur la section de réception (21) ainsi que sur le patin de logement (26) disposé dans l'espace de logement (22) et présente une ouverture de passage (52) pour le boulon fileté (30).
  8. Système de fixation de rails, comprenant :
    - au moins une traverse creuse (12) pourvue d'ouvertures de passage (13) ; ainsi que
    - des boulons à crochet (40) selon l'une quelconque des revendications précédentes, qui viennent en prise, par leur section d'emboîtement (20) en forme de crochet, avec les ouvertures de passage (13) de la au moins une traverse creuse (12) ; ;
    - des panneaux de guidage d'angle (10, 11) que le boulon fileté (30) des boulons à crochet (40) traverse respectivement ; ainsi que
    - des pinces de serrage (4), qui sont fixées respectivement par des éléments de fixation (8) sur le boulon fileté (30).
EP10707004.7A 2010-03-03 2010-03-03 Boulon-crochet pour fixation de rails sur des traverses creuses Not-in-force EP2542717B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/052683 WO2011107148A1 (fr) 2010-03-03 2010-03-03 Boulon-crochet pour fixation de rails sur des traverses creuses

Publications (2)

Publication Number Publication Date
EP2542717A1 EP2542717A1 (fr) 2013-01-09
EP2542717B1 true EP2542717B1 (fr) 2016-06-29

Family

ID=42542986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10707004.7A Not-in-force EP2542717B1 (fr) 2010-03-03 2010-03-03 Boulon-crochet pour fixation de rails sur des traverses creuses

Country Status (9)

Country Link
US (1) US8876015B2 (fr)
EP (1) EP2542717B1 (fr)
CN (1) CN102918205B (fr)
AP (1) AP2012006483A0 (fr)
AR (1) AR080674A1 (fr)
BR (1) BR112012022202A2 (fr)
CA (1) CA2791326A1 (fr)
MX (1) MX2012010194A (fr)
WO (1) WO2011107148A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016216529A1 (de) 2016-09-01 2018-03-01 Schwihag Ag Vorrichtung zur Befestigung einer Schiene für Schienenfahrzeuge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE46755C (de) * J. BUCH in Metz Schienenbefestigung mittelst hebelartiger Krampen

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE46475C (de) J. BUCH in Metz Schienenbefestigung auf metallenen Schwellen
US2387009A (en) * 1943-05-22 1945-10-16 Ralph P Clarkson Rail fastening
DE1784462B1 (de) * 1968-08-10 1971-08-05 Baeseler Wolfgang Dr Prof Schienenbefestigung auf einer Rippenunterlagsplattemittels Federn
DD130794A1 (de) * 1977-03-25 1978-05-03 Johannes Franz Hoehenregulierbare schienenbefestigung auf betonschwellen
US5083706A (en) * 1988-01-28 1992-01-28 Amatek Limited Concrete sleeper with east-in insert cooperating with a fastener assembly
US4967954A (en) * 1988-12-15 1990-11-06 American Track Systems, Inc. Rail fastening device
GB2228958A (en) * 1989-03-09 1990-09-12 Pandrol Ltd Rail clip locating device and concrete foundation therefor
DE9011846U1 (fr) 1990-08-16 1990-10-31 Ferd. Braselmann Gmbh U. Co Kg Profilwalzwerk, 5828 Ennepetal, De
DE4116306A1 (de) * 1991-05-15 1992-11-19 Salzgitter Peine Stahlwerke Vormontierbare schienenbefestigung
CN2108741U (zh) * 1991-12-02 1992-07-01 沈阳铁路局沈阳工务器材厂 带锥形椭圆孔垫板及螺栓
CN2144138Y (zh) * 1992-12-05 1993-10-20 北京铁路分局承德工务段 木枕弹条式扣轨装置
FR2715413B1 (fr) * 1994-01-21 1996-04-12 Allevard Sa Dispositif de fixation pour rail de chemin de fer.
CA2210395C (fr) * 1995-01-13 2008-11-25 Jude Igwemezie Dispositifs de fixation pour rails
AUPP726098A0 (en) * 1998-11-23 1998-12-17 Pandrol Limited Preloading rail clips in steel sleepers
DE102007053901B3 (de) * 2007-11-09 2009-05-20 Db Netz Ag Vorrichtung zur Montage und Demontage eines Befestigungsmittels, insbesondere eines Schienenbefestigungsmittels auf einem Tragkörper

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE46755C (de) * J. BUCH in Metz Schienenbefestigung mittelst hebelartiger Krampen

Also Published As

Publication number Publication date
MX2012010194A (es) 2012-10-01
BR112012022202A2 (pt) 2016-07-05
AR080674A1 (es) 2012-05-02
WO2011107148A1 (fr) 2011-09-09
US20130126629A1 (en) 2013-05-23
EP2542717A1 (fr) 2013-01-09
AP2012006483A0 (en) 2012-10-31
CN102918205B (zh) 2014-10-08
US8876015B2 (en) 2014-11-04
CA2791326A1 (fr) 2011-09-09
CN102918205A (zh) 2013-02-06

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