EP0785308A1 - Cheville hélicoidale en plastique - Google Patents

Cheville hélicoidale en plastique Download PDF

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Publication number
EP0785308A1
EP0785308A1 EP96100609A EP96100609A EP0785308A1 EP 0785308 A1 EP0785308 A1 EP 0785308A1 EP 96100609 A EP96100609 A EP 96100609A EP 96100609 A EP96100609 A EP 96100609A EP 0785308 A1 EP0785308 A1 EP 0785308A1
Authority
EP
European Patent Office
Prior art keywords
dowel
plastic
screw
sleeper
lower region
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
EP96100609A
Other languages
German (de)
English (en)
Other versions
EP0785308B1 (fr
Inventor
Frithjof Schimpf
Helmut Eisenberg
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
Priority to DK96100609T priority Critical patent/DK0785308T3/da
Priority to SI9630607T priority patent/SI0785308T1/xx
Priority to ES96100609T priority patent/ES2196099T3/es
Priority to DE59610378T priority patent/DE59610378D1/de
Priority to EP96100609A priority patent/EP0785308B1/fr
Application filed by Vossloh Werke GmbH filed Critical Vossloh Werke GmbH
Priority to PT96100609T priority patent/PT785308E/pt
Priority to AT96100609T priority patent/ATE238452T1/de
Publication of EP0785308A1 publication Critical patent/EP0785308A1/fr
Application granted granted Critical
Publication of EP0785308B1 publication Critical patent/EP0785308B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 plastic dowel for fastening a rail on a sleeper, in particular a concrete sleeper, with an essentially cylindrical dowel body which has a head region and a lower region, an internal thread for receiving a sleeper screw and an external thread being provided at least along a partial length of the lower region with which the plastic dowel can be screwed out of the threshold.
  • a plastic dowel of this type is known from the German utility model GM 75 11 808. Such a plastic dowel is used in the railway superstructure to secure the rails to the sleeper using a sleeper screw. Such a known plastic screw anchor is shaped in such a way that its internal thread is adapted to the external dimensions of a standard sleeper screw. The external thread of the plastic dowel serves the purpose that it can be replaced later. In addition to the purpose of mechanical fastening, the plastic dowel also serves as electrical insulation between the threshold screw and the threshold.
  • plastic dowels made of higher quality plastic materials, for example made of polypropylene or polyamide.
  • Another alternative is to use fiber-reinforced plastic matrix material. The materials mentioned, however, significantly increase the production costs of the plastic dowel.
  • the invention has for its object to develop a plastic dowel of the type mentioned in such a way that it ensures sufficient stability of the screw-dowel connection and is nevertheless producible at reasonable cost.
  • the lower region of the dowel body has a shape adapted to the external thread of the sleeper screw of substantially uniform wall thickness, the wall thickness of the dowel body being dimensioned such that the dowel outer diameter is at least 1.05 times and at most that 1.2 times the inner diameter of the dowel.
  • the dowel body encloses the screw in the manner of a thin-walled skin.
  • the wall thickness of the plastic dowel for example for a sleeper screw with a nominal diameter of 24 mm, is 0.8 to 2 mm.
  • the lower region of the dowel body is adapted to a rounded external thread of a sleeper screw. This avoids the risk of cutting into the thin dowel wall when screwing in the screw compared to the sharp-edged thread.
  • the thread is formed only in a section of the lower region facing away from the head region.
  • the integration of the screw is moved as deep as possible into the interior of the threshold so that the concrete in the sensitive edge area is protected from damage caused by excessive loads from the screw.
  • the plastic dowel shown in FIG. 1 consists of a dowel body 1 made of plastic, which has a threadless head region 1a and a lower region 1b, in which both an external thread and an internal thread are formed.
  • the head region 1 a opens at the top of the plastic dowel, on which a sleeper screw 2 can be screwed in, which is shown in FIGS Plastic dowel 1 screwed state is shown.
  • the one in the lower area 1b of the dowel body is designed such that it envelops the external thread 2a of the sleeper screw 2 with a uniform wall thickness.
  • the external thread formed in the lower region 1b and resulting from the covering of the sleeper screw with a uniform wall thickness serves for the plastic dowel - for example for its replacement - to be rotatable out of the sleeper.
  • the outer diameter of the plastic dowel according to the invention is approximately 28 mm, so that, according to FIG. 1, the wall thickness of the dowel body in the lower region 1b is continuously approximately 2 mm.
  • Fig. 2 shows the section through a conventional threshold screw.
  • FIG. 4 shows, as section B from FIG. 1, the adapted design of dowel body 1 and screw 2 in the area of the casing.
  • the forces from the sleeper screw are transmitted via the plastic dowel to the concrete sleeper without the permissible yield stresses in the plastic material being exceeded. Rather, the small wall thickness results in direct contact between the parts to be connected without the electrical isolation effect between the two is canceled. It is advantageous that the lower region of the dowel body is adapted to the rounded external thread of the sleeper screw. This avoids the risk of cutting into the thin dowel wall when screwing in the screw compared to the sharp-edged thread.
  • the thread is formed only in a section of the lower region 1b facing away from the head region.
  • the integration of the screw is moved as deep as possible into the interior of the threshold so that the concrete in the sensitive edge area is protected from damage caused by excessive loads from the screw.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Pens And Brushes (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Cosmetics (AREA)
  • Dental Preparations (AREA)
  • Insulators (AREA)
  • Dowels (AREA)
  • Flexible Shafts (AREA)
  • Springs (AREA)
  • Materials For Medical Uses (AREA)
  • Connection Of Plates (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP96100609A 1996-01-17 1996-01-17 Cheville hélicoidale en plastique Expired - Lifetime EP0785308B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SI9630607T SI0785308T1 (en) 1996-01-17 1996-01-17 Helicoidal plastic sleeve
ES96100609T ES2196099T3 (es) 1996-01-17 1996-01-17 Taco roscado de plastico.
DE59610378T DE59610378D1 (de) 1996-01-17 1996-01-17 Kunststoffschraubdübel
EP96100609A EP0785308B1 (fr) 1996-01-17 1996-01-17 Cheville hélicoidale en plastique
DK96100609T DK0785308T3 (da) 1996-01-17 1996-01-17 Plastmateriale skruedyvel
PT96100609T PT785308E (pt) 1996-01-17 1996-01-17 Cavilha roscada de material plastico
AT96100609T ATE238452T1 (de) 1996-01-17 1996-01-17 Kunststoffschraubdübel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96100609A EP0785308B1 (fr) 1996-01-17 1996-01-17 Cheville hélicoidale en plastique

Publications (2)

Publication Number Publication Date
EP0785308A1 true EP0785308A1 (fr) 1997-07-23
EP0785308B1 EP0785308B1 (fr) 2003-04-23

Family

ID=8222410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96100609A Expired - Lifetime EP0785308B1 (fr) 1996-01-17 1996-01-17 Cheville hélicoidale en plastique

Country Status (7)

Country Link
EP (1) EP0785308B1 (fr)
AT (1) ATE238452T1 (fr)
DE (1) DE59610378D1 (fr)
DK (1) DK0785308T3 (fr)
ES (1) ES2196099T3 (fr)
PT (1) PT785308E (fr)
SI (1) SI0785308T1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006001144A1 (de) * 2006-01-06 2007-07-12 Bwg Gmbh & Co. Kg Schienenbefestigung sowie Schraube und Schraubdübel für diese
WO2011147568A1 (fr) * 2010-05-26 2011-12-01 Schwihag Ag Cheville filetée en plastique pour la fixation d'un rail sur une traverse
DE102016112357A1 (de) * 2016-07-06 2018-01-11 Spax International Gmbh & Co. Kg "Dübelschraube"
US9945078B2 (en) 2012-08-22 2018-04-17 Vossloh-Werke Gmbh Plastic dowel for fastening of a rail and combination of such a plastic dowel and a rail screw

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2283235B1 (es) * 2007-04-04 2009-03-01 Mondragon Soluciones, S.L.U. Vaina para sujeciones de railes ferroviarios, procedimiento para reemplazar dicha vaina en una traviesa y utiles para ejecutar dicho procedimiento.
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
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1011101A (fr) * 1948-12-07 1952-06-19 Traverses En Beton Arme Sa Dispositif d'attache isolante des rails
DE1024993B (de) * 1955-09-03 1958-02-27 August Henkes Befestigung fuer Schienen und Unterlagsplatten auf Betonschwellen
GB865120A (en) * 1958-05-07 1961-04-12 Samuel Tippett Improvements relating to the holding down of rails on sleepers
FR2315568A1 (fr) * 1975-06-25 1977-01-21 Vape Sa Ets Dispositif de fixation a vis dans un element de construction en matiere agglomeree

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1011101A (fr) * 1948-12-07 1952-06-19 Traverses En Beton Arme Sa Dispositif d'attache isolante des rails
DE1024993B (de) * 1955-09-03 1958-02-27 August Henkes Befestigung fuer Schienen und Unterlagsplatten auf Betonschwellen
GB865120A (en) * 1958-05-07 1961-04-12 Samuel Tippett Improvements relating to the holding down of rails on sleepers
FR2315568A1 (fr) * 1975-06-25 1977-01-21 Vape Sa Ets Dispositif de fixation a vis dans un element de construction en matiere agglomeree

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006001144A1 (de) * 2006-01-06 2007-07-12 Bwg Gmbh & Co. Kg Schienenbefestigung sowie Schraube und Schraubdübel für diese
WO2011147568A1 (fr) * 2010-05-26 2011-12-01 Schwihag Ag Cheville filetée en plastique pour la fixation d'un rail sur une traverse
US8814058B2 (en) 2010-05-26 2014-08-26 Schwihag Ag Plastic screw anchor for securing a rail to a railroad tie
RU2559185C2 (ru) * 2010-05-26 2015-08-10 Швихаг Аг Пластмассовый дюбель для скрепления рельса со шпалой
AU2011257533B2 (en) * 2010-05-26 2016-12-08 Schwihag Ag Plastic screw plug for attaching a rail to a sleeper
US9945078B2 (en) 2012-08-22 2018-04-17 Vossloh-Werke Gmbh Plastic dowel for fastening of a rail and combination of such a plastic dowel and a rail screw
DE102016112357A1 (de) * 2016-07-06 2018-01-11 Spax International Gmbh & Co. Kg "Dübelschraube"

Also Published As

Publication number Publication date
SI0785308T1 (en) 2003-08-31
PT785308E (pt) 2003-08-29
EP0785308B1 (fr) 2003-04-23
ES2196099T3 (es) 2003-12-16
ATE238452T1 (de) 2003-05-15
DK0785308T3 (da) 2003-07-21
DE59610378D1 (de) 2003-05-28

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