EP2576907B1 - Cheville filetée en plastique pour la fixation d'un rail sur une traverse - Google Patents

Cheville filetée en plastique pour la fixation d'un rail sur une traverse Download PDF

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Publication number
EP2576907B1
EP2576907B1 EP11723269.4A EP11723269A EP2576907B1 EP 2576907 B1 EP2576907 B1 EP 2576907B1 EP 11723269 A EP11723269 A EP 11723269A EP 2576907 B1 EP2576907 B1 EP 2576907B1
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EP
European Patent Office
Prior art keywords
thread
dowel
sleeper
plastic
screw
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.)
Active
Application number
EP11723269.4A
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German (de)
English (en)
Other versions
EP2576907A1 (fr
Inventor
Erik Danneberg
Tilmann Peter RÜTZEL
Roland Buda
Frank Meyer
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.)
Schwihag AG
Original Assignee
Schwihag AG
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 Schwihag AG filed Critical Schwihag AG
Priority to SI201130451T priority Critical patent/SI2576907T1/sl
Priority to PL11723269T priority patent/PL2576907T3/pl
Publication of EP2576907A1 publication Critical patent/EP2576907A1/fr
Application granted granted Critical
Publication of EP2576907B1 publication Critical patent/EP2576907B1/fr
Priority to HRP20150248AT priority patent/HRP20150248T1/hr
Priority to CY20151100319T priority patent/CY1116162T1/el
Active 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
    • E01B9/04—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
    • E01B9/18—Plugs, sleeves, thread linings, or other inserts for holes in sleepers for concrete sleepers

Definitions

  • the invention relates to a Kunststoffschraubdübel for mounting a rail on a threshold, in particular concrete sleeper, with a substantially cylindrical dowel body, the head side has a preferably a dowel crown down adjoining shaft region and in the continuation of an external thread with which he out of the threshold or in this is screwed, and is provided for receiving a sleeper screw below the shaft portion with an internal thread.
  • the rails of the railway tracks are laid almost exclusively on concrete sleepers and rail fastening systems in today's highly loaded routes, consisting of clamping elements (clamps), rail guide elements (angled guide plates) and a screw-dowel combination, wherein a Kunststoffschraubdübel of the type mentioned, as by the EP 0 785 308 B1 become known, is used.
  • the plastic dowel is made of higher value plastic materials, such as polypropylene, polyamide or polyolefin, in particular HDPE, by injection molding.
  • the screw-dowel combination is a critical component because on the one hand it has to absorb the high tension forces of the tension clamp (in highly elastic systems it is even a vibratory force) and on the other hand the forces must be introduced as gently as possible into the prestressed concrete of the threshold. Predominantly increased voltage peaks very quickly lead to cracks in the concrete, which permanently lead to the destruction of the concrete sleeper.
  • the thinness of the plastic anchor causes the force to be introduced from the sleeper screw directly into the concrete, which leads to extreme stress peaks in the concrete, especially in the case of impacts or transverse force components (introduced from the railway wheel via the rail to the fastening system).
  • the unscrewing if damage is festgesellt, such a thin-walled plastic dowel only partially possible because the replacement dowel must have smaller external thread dimensions in order to be screwed into the "concrete thread" (created when unscrewing the damaged dowel) can.
  • a further reduction of the wall thickness results in a significant weakening of the plastic dowel, so that an exchange can not provide lasting security.
  • a second screw-dowel combination consists of a commercially available sleeper screw with a pointed thread and a plastic dowel with internal thread exclusively for pointed screws.
  • the plastic dowel used here are thick-walled, however, requires the screwing the sleeper screw a special care to capture the Gewindindelauf the anchor. If this does not happen, the sleeper screw can cut a new thread in the plastic dowel in addition to the given thread pitch of the pointed thread, which leads to considerable weakening of the plastic dowel and its long-term destruction.
  • the invention is therefore an object of the invention to provide a generic Kunststoffschraubdübel without the disadvantages mentioned, which is particularly improved in terms of its operating characteristics, such as uniform application of force in the threshold, easier installation and interchangeability, reducing the risk of cracking, and is also used variably.
  • This object is achieved in that the shaft portion inside, in the transition to the internal thread over a part of the length of the shaft portion reducing the inner diameter, at least over a partial circumference extending, coiled extending paragraph.
  • This heel which may be about 15mm long with a shank length of about 40mm, laces the throat for a sleeper screw and pre-centers the sleeper screw just prior to threading into the female thread of the anchor.
  • the like the subsequent threads helical formation of the paragraph supports that the sleeper screw can not cut its own, new thread in addition to the given threaded barrel.
  • pointed screws the risk of damaging the dowel is avoided by incorrect installation or attachment of the sleeper screw. It can no longer happen that a pointed screw cuts a new thread, which would require turning back and reapplying the sleeper screw.
  • the plastic dowel according to the invention is thus suitable for sleeper screws with a pointed thread and for sleeper screws with a round thread.
  • these two types of screw are often found in the track construction companies and railway companies to tens of thousands of units in the camp, the dowel can not be damaged and the assembly can be carried out unchanged.
  • An advantageous proposal of the invention provides that in the screwing each leading flanks of the internal thread of the anchor and its respective trailing flanks have a different pitch angle and merge into one another in the thread root with different radii. It can thereby achieve an optimization of the thread geometry for receiving sleeper screws with round or pointed thread with the same fatigue strength and bracing.
  • the lead angle for the leading or trailing edge causing this optimization may be 70 ° or 45 ° and the transition radii 1 mm and 1.5 mm, respectively.
  • a preferred embodiment of the invention provides that the shaft region is formed with a thread-like outer profiling.
  • the threads of the external thread of the Kuriststoffschraubdübels sawtooth with one of the threaded crowns in the screwing sloping, flat inclination and are formed with the same, large pitch, for example, have an inclination angle of 18 ° and a slope of about 12.5 mm, that contributes for stress distribution and thus avoid radial cracks in the concrete sleeper, which can prevent the blowing of the sleepers along the direction of the steel reinforcement. Due to the sawtooth shape namely the spreading is kept as low as possible. In addition, a steep angle can be achieved for the trailing, upper flanks of the external thread. When an extraction force is exerted, the dowel thus only supports itself in a short area of the thread contour. A high proportion of the support area, i. H. the upper flanks of the external thread, is thus executed at a steep angle.
  • the dowel body has a large thickness with a ratio of the core diameter of the internal thread to the outer diameter of ⁇ 0.67, wherein preferably the core diameter 15 to 20 mm and the outer diameter is 30 to 35 mm.
  • the dowels which are significantly larger than those used in the railroad sector, allow for large force transmission surfaces and result in lower stresses in the entire rail fastening system. Particularly suitable are a core diameter of 17 to 18 mm and an outer diameter of 31 to 32 mm have been found, i. the remaining wall thickness moves in this embodiment between 13 and 15 mm.
  • the internal thread has a pitch other than the thread of the sleeper screw, optionally with at least one of the other gradients different pitch is formed.
  • the total length of the anchor from the crown to the outlet, at least 135 to 140 mm.
  • the dowel crown is tapered in the screwing.
  • the dowel crown is particularly effective when the dowel is positioned during casting of the concrete sleeper by means of dowel holder in the mold. Because then prevents the low-viscosity concrete surface water (vinasse) penetrates into the dowel. Namely, it is possible to achieve a sealing effect. Then, when the dowel is screwed firmly into the sill, the outer edge of the dowel crown of the dowel injection-molded from an elastic material acts like a sealing lip.
  • a common rail fastening system in which a laid on a concrete sleeper 1 jaw rail 2 is fixed by means of clamps 3 and sleeper screws 4, the intermediate loop of the clamps 3 are interspersed with the interposition of angled guide plates 5 in Kunststoffschraubdübel 6 of the concrete sleeper 1.
  • pointed thread sleeper screws 4a cf. Fig. 3
  • round threaded sleeper screws 4b see. Fig. 4
  • the Kunststoffschraubdübel 6 relating.6a, 6b have a substantially cylindrical dowel body, the head side a shank region 7, optionally with a dowel crown 8 (see. Fig. 4 ), and in its continuation on the one hand a sawtooth-shaped external thread 9 and on the other hand an internal thread 10 has.
  • a Kunststoffschraubdübels 6 of the dowel body is very thick-walled, so that it can deform plastically in the concrete sleeper 1.
  • the ratio of the core diameter Di of the internal thread 9 to the outside diameter Da of the dowel body is ⁇ / 0.67 (cf. Fig. 12 ).
  • the threads 9a of the external thread 9 are sawtooth-shaped and with one of the threaded crowns 9b in the screw 11 (see the arrows in the Fig. 5 and 8 and 9) sloping, flat angle of inclination 12 of about 18 ° and with the same great pitch P of ca. 12.5 mm of the leading, lower flanks formed (see Fig. 7 and 12 ), while the trailing, upper flanks are executed at a rather steep angle.
  • the shaft portion 7 is in both dowel variants with a coiled running paragraph 13 in the internal thread 10, whereby the inner diameter of the shaft portion 7 over a partial length, for example, 15 mm at a shaft length of 40 mm, a reduction in diameter undergoes, so that the coiled heel Ein Industries Ltd.
  • the sleeper screw 4 engages and positions itself in front of the internal thread 10 such that a pointed thread sleeper screw 4a can not cut its own thread.
  • the Kunststoffschraubdübel 6 also have optimized toothing geometries of its internal thread 10.
  • the respectively in the screw 11 leading edges have a pitch angle ⁇ of about 70 ° and the trailing flanks a pitch angle ⁇ of about 45 ° on (see the Fig. 7 and 12 ).
  • the leading and the trailing edges with different radii R1 or R1.5, ie with 1 mm and 1.5 mm, merge into one another.
  • Kunststoffschraubdübels 6 of 8 to 12 deviates from the after Fig. 5 to 7 characterized in that the shaft portion 7 also with a thread-like outer profile 14 with a large pitch P of about 12.5 mm is provided and the dowel crown 8 tapers in the screw 11 with a cone angle 15 of about 8 ° (see. Fig. 11 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Dowels (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Bridges Or Land Bridges (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Fishing Rods (AREA)
  • Connection Of Plates (AREA)
  • Railway Tracks (AREA)

Claims (9)

  1. Cheville plastique filetée (6) pour la fixation d'un rail (2) sur une traverse (1), en particulier une traverse en béton, comprenant un corps de cheville essentiellement cylindrique, qui présente, côté tête, une partie de tige (7) se raccordant vers le bas à une couronne de cheville (8) de préférence et un filetage mâle (9) dans son prolongement, avec lequel il peut être vissé dans et dévissé hors de la traverse (1), et est doté d'une filetage femelle (10) pour recevoir une vis de traverse (4 ; 4a, 4b) en-dessous de la partie de tige (7), caractérisée en ce que la partie de tige (7) présente à l'intérieur, un épaulement (13) circulaire s'étendant sur au moins un pourtour partiel, réduisant le diamètre intérieur sur une longueur partielle de la partie de tige (7) dans la transition vers le filetage femelle (10).
  2. Cheville plastique filetée selon la revendication 1, caractérisée en ce que les flancs du filetage femelle (10) de la cheville (6) avançant respectivement dans le sens de vissage (11) et leur flancs à la traîne respectivement, présentent un angle d'inclinaison (β, α) différent et passent l'un dans l'autre avec différents rayons (R1, R1.5) dans le fond du filet.
  3. Cheville plastique filetée selon la revendication 1 ou 2, caractérisée en ce que la partie de tige (7) est formée avec un profilé extérieur hélicoïdal (14).
  4. Cheville plastique filetée selon l'une des revendications 1 à 3, caractérisée en ce que les pas de vis (9a) de son filetage mâle (9) sont en dents de scie, avec un angle d'inclinaison (12) plat descendant de la couronne de filet (9b) dans le sens de vissage (11), et sont formés avec une inclinaison de la même grandeur (P) de leurs flancs d'avancement inférieurs et un angle opposé à forte pente de leur flancs à la traîne supérieurs.
  5. Cheville plastique filetée selon l'une des revendications 1 à 4, caractérisée en ce que le corps de cheville a une grande épaisseur avec un rapport du diamètre de noyau (Di) du filetage mâle (10) au diamètre extérieur (Da) de ≤/= 0,67, sachant que de préférence, le diamètre de noyau (Di) fait entre 15 et 20 mm et le diamètre extérieur (Da) entre 30 et 35 mm.
  6. Cheville plastique filetée selon l'une des revendications 1 à 5, caractérisée en ce que le filetage mâle (10) présente une autre inclinaison que le filetage de la vis de traverse (4 ; 4a, 4b).
  7. Cheville plastique filetée selon l'une des revendications 1 à 5, caractérisée en ce que le filetage mâle (10) est formé avec au moins une inclinaison différente des inclinaisons restantes.
  8. Cheville plastique filetée selon l'une des revendications 1 à 7, caractérisée en ce que sa longueur totale fait au moins 135 à 140 mm.
  9. Cheville plastique filetée selon l'une des revendications 1 à 8, caractérisée en ce que la couronne de cheville (8) est formée en se rétrécissant dans le sens de vissage (11).
EP11723269.4A 2010-05-26 2011-05-25 Cheville filetée en plastique pour la fixation d'un rail sur une traverse Active EP2576907B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SI201130451T SI2576907T1 (sl) 2010-05-26 2011-05-25 VloĹľek vijaka iz umetne snovi za pritrditev tirnice na prag
PL11723269T PL2576907T3 (pl) 2010-05-26 2011-05-25 Kołek gwintowany z tworzywa sztucznego do mocowania szyny na podkładzie
HRP20150248AT HRP20150248T1 (hr) 2010-05-26 2015-03-05 Plastiäśni navojni äśep za priäśvršä†ivanje šine na prag
CY20151100319T CY1116162T1 (el) 2010-05-26 2015-04-02 Πλαστικο βιδωτο καρφι για τη στερεωση μιας ραγας πανω σε ενα στρωτηρα

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102010021505 2010-05-26
DE102010052357 2010-11-25
DE102011103127A DE102011103127B4 (de) 2010-05-26 2011-05-25 Kunststoffschraubdübel zur Befestigung einer Schiene auf einer Schwelle
PCT/EP2011/002596 WO2011147568A1 (fr) 2010-05-26 2011-05-25 Cheville filetée en plastique pour la fixation d'un rail sur une traverse

Publications (2)

Publication Number Publication Date
EP2576907A1 EP2576907A1 (fr) 2013-04-10
EP2576907B1 true EP2576907B1 (fr) 2015-01-14

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Application Number Title Priority Date Filing Date
EP11723269.4A Active EP2576907B1 (fr) 2010-05-26 2011-05-25 Cheville filetée en plastique pour la fixation d'un rail sur une traverse

Country Status (26)

Country Link
US (1) US8814058B2 (fr)
EP (1) EP2576907B1 (fr)
JP (1) JP6038022B2 (fr)
CN (1) CN103038421B (fr)
AU (1) AU2011257533B2 (fr)
BR (1) BR112012029984B1 (fr)
CA (1) CA2800648C (fr)
CY (1) CY1116162T1 (fr)
DE (1) DE102011103127B4 (fr)
DK (1) DK2576907T3 (fr)
ES (1) ES2530016T3 (fr)
HR (1) HRP20150248T1 (fr)
IL (1) IL223270A (fr)
MA (1) MA34236B1 (fr)
MX (1) MX2012013683A (fr)
MY (1) MY168184A (fr)
PL (1) PL2576907T3 (fr)
PT (1) PT2576907E (fr)
RS (1) RS53820B1 (fr)
RU (1) RU2559185C2 (fr)
SG (1) SG185677A1 (fr)
SI (1) SI2576907T1 (fr)
SM (1) SMT201500092B (fr)
TN (1) TN2012000536A1 (fr)
WO (1) WO2011147568A1 (fr)
ZA (1) ZA201207662B (fr)

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EP2609257A1 (fr) * 2010-08-24 2013-07-03 Vossloh-Werke GmbH Plaque support d'un système de fixation de rail, système de fixation d'un rail et procédé d'assainissement d'un point de fixation de rail
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CN114134764A (zh) * 2020-09-03 2022-03-04 洛阳科博思新材料科技有限公司 一种可修复道钉松动的轨枕结构和道钉松动的修复方法
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WO2011147568A1 (fr) * 2010-05-26 2011-12-01 Schwihag Ag Cheville filetée en plastique pour la fixation d'un rail sur une traverse
PL2431520T3 (pl) * 2010-09-21 2015-11-30 Vossloh Werke Gmbh Kotwa śrubowa do zamocowania szyn

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Publication number Publication date
WO2011147568A8 (fr) 2012-02-02
EP2576907A1 (fr) 2013-04-10
RU2012156951A (ru) 2014-07-10
AU2011257533B2 (en) 2016-12-08
BR112012029984A2 (pt) 2016-08-02
US20130056545A1 (en) 2013-03-07
US8814058B2 (en) 2014-08-26
PT2576907E (pt) 2015-04-23
DE102011103127B4 (de) 2013-05-29
TN2012000536A1 (en) 2014-04-01
DK2576907T3 (en) 2015-04-20
PL2576907T3 (pl) 2015-06-30
CA2800648C (fr) 2018-04-10
AU2011257533A2 (en) 2013-05-02
CN103038421B (zh) 2015-01-14
JP2013526665A (ja) 2013-06-24
MX2012013683A (es) 2013-03-21
AU2011257533A1 (en) 2013-01-10
RS53820B1 (en) 2015-06-30
BR112012029984B1 (pt) 2020-05-05
IL223270A0 (en) 2013-02-03
ES2530016T3 (es) 2015-02-25
ZA201207662B (en) 2013-05-29
CN103038421A (zh) 2013-04-10
CY1116162T1 (el) 2017-02-08
JP6038022B2 (ja) 2016-12-07
SG185677A1 (en) 2012-12-28
WO2011147568A1 (fr) 2011-12-01
DE102011103127A1 (de) 2011-12-01
SI2576907T1 (sl) 2015-05-29
MA34236B1 (fr) 2013-05-02
RU2559185C2 (ru) 2015-08-10
IL223270A (en) 2015-08-31
SMT201500092B (it) 2015-05-05
CA2800648A1 (fr) 2011-12-01
HRP20150248T1 (hr) 2015-04-10
MY168184A (en) 2018-10-11

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