EP2576907A1 - 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

Info

Publication number
EP2576907A1
EP2576907A1 EP11723269.4A EP11723269A EP2576907A1 EP 2576907 A1 EP2576907 A1 EP 2576907A1 EP 11723269 A EP11723269 A EP 11723269A EP 2576907 A1 EP2576907 A1 EP 2576907A1
Authority
EP
European Patent Office
Prior art keywords
thread
sleeper
dowel
screw plug
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.)
Granted
Application number
EP11723269.4A
Other languages
German (de)
English (en)
Other versions
EP2576907B1 (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

Links

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 has 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 dowel body By thus further reduced thickness of the dowel body to enclose the screw in the manner of a thin-walled skin.
  • the lower portion of the dowel body is adapted to the rounded outer thread of the sleeper screw, the risk of cutting into the thin dowel wall when screwing the screw compared to the sharp-edged thread should be avoided.
  • 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, of 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" (resulting from unscrewing the damaged dowel) Wall thickness, however, 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 plastic screw plug without the disadvantages mentioned, which in particular with respect to its operating characteristics, such as uniform application of force in the threshold, easier installation and interchangeability, reducing the risk of cracking, is improved and is also used variably.
  • This object is achieved in that the shaft portion inside, in the transition to the internal thread over a partial length of the shaft portion, the inner diameter decreasing, at least over a partial circumference extending, coiled extending paragraph has.
  • 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 heel supports that the sleeper screw can not cut its own, new thread in addition to the given thread pitch. Especially with the use of pointed screws, the risk of damaging the anchor 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. This makes it possible to optimize the thread geometry for accommodating sleeper screws with a round or pointed thread with the same fatigue strength and stressing force.
  • the slope angle for the leading or trailing edge causing this optimization can be 70 ° or 45 ° and the transition radii 1 mm or 1.5 mm.
  • a preferred embodiment of the invention provides that the shaft region is formed with a thread-like outer profiling.
  • further thread profiling which is formed between - where available - a dowel crown and the Einschraubgeometrie with pre-centering defining helical heel, which is what numerous tests have confirmed that even with very high screw-in torque a pull-out movement is prevented and the dowel still remains unscrewed.
  • values of approx. 900 to 1,000 Nm are quite likely in practice due to poorly adjusted screwdriving machines, whereby the shaft area expands upwards and the dowel crown is pulled out by a few tenths of a millimeter over the surface of the concrete sleeper.
  • the threads of the external thread of Kunststoffschraubdübels sawtooth with one of the threaded crowns in the screwing sloping, flat inclination and formed with the same, large pitch, for example, have an inclination angle of 18 ° and a slope of about 12.5 mm, wearing 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 a reduction of 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.
  • these are commercially available dimensions, and it is within the scope of the invention to extend the anchor beyond this commercial level for the purpose of shifting the introduction of force into an uncritical region of the concrete sleeper.
  • 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.
  • Figure 1 in plan view as a detail of a track system attaching a rail on a concrete sleeper.
  • Fig. 2 is a section along the line II-II of Fig. 1;
  • Figure 3 is a perspective longitudinal section of a conventional sleeper screw with a pointed thread, which is screwed into a counting of the prior art Kunststoffschraubdübel for pointed thread.
  • Figure 4 is a perspective longitudinal section of a conventional sleeper screw with a round thread, which is screwed into a counting for the prior art Kunststoffschraubdübel for round thread.
  • FIG. 5 shows a longitudinal view of a first embodiment of a plastic screw-in plug according to the invention with optimized screw-in geometry for use with both swivel screws with a round thread and with a pointed thread;
  • FIG. 6 shows the plastic screw plug of Figure 5 in a longitudinal section ..
  • Figure 8 is a longitudinal view of another embodiment of a plastic screw plug according to the invention for use with both threaded and swivel threaded sleeper screws;
  • FIG. 9 shows the plastic screw plug of FIG. 8 in a perspective longitudinal view
  • Fig. 10 is a section taken along the line XX of Fig. 8; Figure 11 as a detail in an enlarged view of the circled in Figure 10 dash-dotted upper dowel area.
  • a common rail fastening system in which a laid on a concrete sleeper 1 jaw rail 2 is determined by means of clamps 3 and sleeper screws 4, the interposition of angled guide plates 5, the middle loop of the clamps 3 by dipping in Kunststoffschraubdübel 6 of the concrete sleeper 1 are screwed.
  • pointed-thread sleeper screws 4a see 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 shaft portion 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 has an internal thread 10.
  • the plug body is designed to be very thick-walled, so that it can plastically deform 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 (see Fig. 12).
  • the threads 9a of the external thread 9 are sawtooth-shaped and with one of the threaded crowns 9b in the screwing 11 (see the arrows in Figs.
  • 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 execution of the Kunststoffschraubdübels 6 of Fig. 8 to 12 differs from that according to FIGS. 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 screwing 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)

Abstract

L'invention concerne une cheville filetée en plastique (6) pour la fixation d'un rail sur une traverse, notamment une traverse en béton, avec un corps de cheville sensiblement cylindrique comportant une zone de tige (7) qui, du côté tête, se raccorde de préférence à une couronne de cheville(8) en s'étendant vers le bas, un filetage extérieur(9) dans le prolongement de ladite zone de tige (7), par lequel la cheville peut être vissée dans la traverse ou dévissée de celle-ci, et un filetage intérieur (10) en dessous de la zone de tige (7), pour recevoir un tire-fond. L'invention vise à améliorer une telle cheville filetée en plastique, notamment sur le plan de ses caractéristiques fonctionnelles, telles que l'introduction d'une force uniforme dans la traverse, un montage et un remplacement plus aisés, la réduction du risque de fissures, et en outre à la rendre plus polyvalente. A cet effet, la zone de tige (7) comporte à l'intérieur, à la transition vers le filetage intérieur (10), un décrochement (13) à tracé spiralé, réduisant le diamètre intérieur sur une longueur partielle de la zone de tige (7) et s'étendant au moins sur une partie du pourtour.
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 true EP2576907A1 (fr) 2013-04-10
EP2576907B1 EP2576907B1 (fr) 2015-01-14

Family

ID=44483922

Family Applications (1)

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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WO2011147568A1 (fr) * 2010-05-26 2011-12-01 Schwihag Ag Cheville filetée en plastique pour la fixation d'un rail sur une traverse
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
PL2431520T3 (pl) * 2010-09-21 2015-11-30 Vossloh Werke Gmbh Kotwa śrubowa do zamocowania szyn
DE202013101664U1 (de) 2012-04-18 2013-05-28 Vossloh-Werke Gmbh Dübel für die Befestigung einer Schiene und Kombination aus einem solchen Dübel mit einem Bewehrungselement und Befestigungspunkt für eine Schiene
DE102012107732A1 (de) * 2012-08-22 2014-05-15 Vossloh-Werke Gmbh Kunststoffdübel für die Befestigung einer Schiene und Kombination aus einem solchen Kunststoffdübel und einer Schwellenschraube
DE102012107734A1 (de) 2012-08-22 2014-05-15 Vossloh-Werke Gmbh Schwellenschraube für die Befestigung einer Schiene und Kombination aus einer solchen Schwellenschraube und einem Kunststoffdübel
DE102013110288A1 (de) * 2013-09-18 2015-03-19 Vossloh-Werke Gmbh Plattenelement für einen Befestigungspunkt, in dem eine für Schienenfahrzeuge vorgesehene Schiene befestigt ist, und Befestigungspunkt
CN105350405B (zh) * 2015-11-20 2017-09-26 蔚县丽远紧固件有限公司 铁路轨道螺栓母及螺栓母中止退环的加工工艺
DE102016216529A1 (de) * 2016-09-01 2018-03-01 Schwihag Ag Vorrichtung zur Befestigung einer Schiene für Schienenfahrzeuge
GB2557609B (en) * 2016-12-12 2023-01-18 Pandrol Ltd A variable diameter fastener for a railway rail fastening assembly
DE102018100554A1 (de) * 2018-01-11 2019-07-11 Schwihag Ag Schienenbefestigungssystem
JP7000299B2 (ja) * 2018-11-21 2022-01-19 株式会社日立ビルシステム ガイドレール固定装置、及びこれを用いたエレベーター
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
RU202756U1 (ru) * 2020-10-01 2021-03-04 Открытое Акционерное Общество "Российские Железные Дороги" Дюбель крепежного узла промежуточного рельсового скрепления
RU2767115C1 (ru) * 2021-11-09 2022-03-16 Акционерное общество "РС-Комплект" Соединение рельсового скрепления с основанием рельсового пути

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Also Published As

Publication number Publication date
WO2011147568A8 (fr) 2012-02-02
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
EP2576907B1 (fr) 2015-01-14
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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