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US20020060273A1 - Sleeper arrangement for railroad switch - Google Patents

Sleeper arrangement for railroad switch Download PDF

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Publication number
US20020060273A1
US20020060273A1 US09/989,720 US98972001A US2002060273A1 US 20020060273 A1 US20020060273 A1 US 20020060273A1 US 98972001 A US98972001 A US 98972001A US 2002060273 A1 US2002060273 A1 US 2002060273A1
Authority
US
United States
Prior art keywords
tongues
fixed
track system
sleepers
transversely
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.)
Abandoned
Application number
US09/989,720
Other languages
English (en)
Inventor
Karl-Heinz Schwiede
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 Gesellschaft fuer Eisenbahnoberbau mbH
Original Assignee
Schwihag Gesellschaft fuer Eisenbahnoberbau mbH
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 Gesellschaft fuer Eisenbahnoberbau mbH filed Critical Schwihag Gesellschaft fuer Eisenbahnoberbau mbH
Assigned to SCHWIHAG GESELLSCHAFT FUR EISENBAHNOBERBAU MBH reassignment SCHWIHAG GESELLSCHAFT FUR EISENBAHNOBERBAU MBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHWIEDE, KARL-HEINZ
Publication of US20020060273A1 publication Critical patent/US20020060273A1/en
Abandoned 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
    • E01B7/00—Switches; Crossings
    • E01B7/22—Special sleepers for switches or crossings; Fastening means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control

Definitions

  • the present invention relates to a railroad switch. More particularly this invention concerns a tie or sleeper arrangement for the rails, tongues, and operating mechanism for a railroad switch.
  • a standard railroad switch comprises a pair of longitudinally extending running or stock rails that are fixed on transversely throughgoing ties or sleepers and that extend parallel to each other at a fixed transverse spacing.
  • Respective tongue rails have ends displaceable transversely between a switching position meeting the respective running rails at a small acute angle at a so-called frog or point.
  • Another object is the provision of such an improved sleeper arrangement for a railroad switch which overcomes the above-given disadvantages, that is which accommodates the three main elements, namely the shifting rod, monitoring elements, and tongue-locking parts.
  • a track system has sleepers of predetermined width and at a predetermined spacing and a pair of running rails fixed to the sleepers.
  • a switch according to the invention has inner and outer transversely displaceable tongues engageable with the running rails and a pair of parallel hollow box sleepers of the predetermined width and at the predetermined spacing fixed to the running rails and on which the tongues are transversely displaceable.
  • a drive rod extending transversely in one of the box sleepers is connected to both of the tongues so that a drive connected to the drive rod can transversely shift the tongues.
  • Inner and outer position-monitoring rods extending transversely in the other of the box sleepers are connected to the respective guard rails.
  • a common housing is fixed transversely adjacent the box sleepers and into which the rods extend.
  • a drive in the housing is connected to the drive rod, and position sensors in the housing are connected to the position-monitoring rods for determining the actual positions of the tongues.
  • the track system according to the invention further has a locking rod extending transversely in the other box sleeper and connected to both of the tongues and means in the housing connected to the locking rod for fixing the transverse position of the tongues.
  • a link above the position-monitoring rods is fixed to and transversely interconnects the tongues.
  • Respective inner and outer brackets connect outer ends of the inner and outer positioning rods to the respective tongues.
  • the locking rod is slidable in the inner bracket has an outer end fixed to the link between the tongues.
  • This link is a straight flat metal bar lying in a vertical and transverse plane and having bent ends fixed to the tongues.
  • Respective inner and outer brackets connecting the bent ends to the inner and outer tongues.
  • Another link above the drive rod is fixed to and transversely interconnects the tongues and is fixed to an outer end of the drive rod.
  • This link is also a straight flat metal bar lying in a vertical and transverse plane and having bent ends fixed to the tongues and respective inner and outer brackets connect the bent ends to the inner and outer tongues.
  • Each box sleeper in accordance with the invention has enlarged upper flanges to which the running rails are fixed. Chairs fixed to the tongues are slidable on the flanges.
  • the floor of each box sleeper is provided with mounts for electric, hydraulic, or pneumatic control lines.
  • FIG. 1 is a perspective view of the sleeper arrangement according to the invention
  • FIG. 2 is a larger-scale top view of the switch structure of FIG. 1;
  • FIGS. 3, 4, 5 , 6 , 7 , 8 , and 9 are sections taken along respective lines III-III, IV-IV, V-V, VI-VI, VII-VII, VIII-VIII, and IX-IX of FIG. 2.
  • a sleeper arrangement according to the invention comprises two hollow box sleepers 2 a and 2 b of a switch 1 and two standard solid sleepers 2 c that extend transversely between outer and inner longitudinally extending running rails 4 a and 4 b secured in place by standard clips 3 on the sleepers 2 a, 2 b, and 2 c.
  • Outer and inner transversely displaceable and longitudinally extending tongues 7 a and 7 b are secured by clips 8 in chairs 5 slidable on flanges 6 of the sleepers 2 a and 2 b, although roller assemblies could be used to reduce friction.
  • the sleepers 2 a - 2 c are at a standard center-to-center spacing S of about 600 mm and are of a standard width W. While the sleepers 2 c are solid, normally of concrete or wood, as seen in FIGS. 2 through 9, the sleepers 2 a and 2 b are substantially identical and both formed of steel as upwardly open troughs with closed ends and inwardly turned edge flanges to which the clips 3 are secured. Spaces 29 between the sleepers 2 a through 2 c are filled with ballast, typically heavy gravel, and have standardized widths that are equal to the spacing S minus the width W. Normally the tops of the upwardly open box sleepers 2 a and 2 b are provided with covers having slots or other formations through which connection between the tongues 7 a and 7 b and the below-describe structure can pass.
  • the switch 1 has a motor housing 14 that is secured by fittings 15 to the inner ends of the sleepers 2 a and 2 b and that contains a drive mechanism 13 , monitoring equipment 27 , and locking equipment 28 respectively associated with a tongue-setting rod 9 , a pair of position-monitoring rods 10 and 11 , and a rod 12 that serves to lock the tongues 7 a and 7 b in position.
  • the rod 9 which must exert considerable force on the transversely displaceable tongues 7 a and 7 b, is alone in the sleeper 2 b while the rods 10 , 11 , and 12 are all accommodated in the sleeper 2 a.
  • the monitoring rods 10 and 11 which are associated with the monitoring equipment or sensors 27 in the housing 14 , are connected via respective brackets 16 a and 16 b to the outer and inner tongue rails 7 a and 7 b so as to move synchronously therewith.
  • the rod 10 passes through but is not connected to the inner bracket 16 b.
  • the outer and inner brackets 16 a and 16 b are connected together by a link 17 constituted as a flat metal bar lying in a vertical plane and having right-angle ends 18 (FIG. 2) secured by bolts 21 to the brackets 16 a and 16 b .
  • the sensors or monitoring equipment 27 in the housing 13 can determine the actual positions of the tongue rails 7 a and 7 b , ensuring that each one is in where it should be.
  • the locking rod 12 which is associated with the locking mechanism 28 , has an end 19 secured in a slide bracket or eye 20 fixed on the link 17 , which lies above the rods 10 , 11 , and 12 which lie in a common horizontal plane.
  • the rods 10 , 11 , and 12 are all accommodated in the box sleeper 2 a as mentioned above.
  • FIGS. 6 through 7 show how the outer end of the drive rod 9 is fixed between the rails 4 a and 4 b to a bracket 22 on a rigid metal link 23 having ends connected via brackets 24 a and 24 b to the rails 7 a and 7 b .
  • the link 23 locks the rails 7 a and 7 b together for joint transverse movement and connects them to the drive rod 9 which can be shifted by the drive mechanism 13 in the housing 14 . Since the drive system incorporating the rod 9 and link 23 must transmit considerable force, these parts are relatively massive and are accommodated all alone in the box sleeper 2 b.
  • the box sleepers 2 a and 2 b have floors 25 to which cabling 26 , for instance to heat the system and prevent ice from disabling it, and the like can be secured, below the transversely displaceable parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
US09/989,720 2000-11-21 2001-11-20 Sleeper arrangement for railroad switch Abandoned US20020060273A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10057882A DE10057882A1 (de) 2000-11-21 2000-11-21 Eisenbahn-Gleisanlage mit Hohlkastenschwellen im Antriebsbereich einer Weiche
DE10057882.9 2000-11-21

Publications (1)

Publication Number Publication Date
US20020060273A1 true US20020060273A1 (en) 2002-05-23

Family

ID=7664207

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/989,720 Abandoned US20020060273A1 (en) 2000-11-21 2001-11-20 Sleeper arrangement for railroad switch

Country Status (3)

Country Link
US (1) US20020060273A1 (de)
DE (1) DE10057882A1 (de)
GB (1) GB2369144B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2408062A (en) * 2003-10-28 2005-05-18 Corus Uk Ltd Concrete rail bearer
US7168662B1 (en) * 2003-07-07 2007-01-30 Union Switch & Signal, Inc. Hollow tie railroad switching assembly
US20080093508A1 (en) * 2006-10-24 2008-04-24 Union Switch & Signal, Inc. Unitary body hollow tie for a switch machine
US20080093507A1 (en) * 2006-10-24 2008-04-24 Union Switch & Signal, Inc. Concrete tie
US20090095846A1 (en) * 2007-10-10 2009-04-16 The Texas A&M University System Guideway Switching Mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2017120A3 (cs) * 2017-03-03 2018-04-18 AŽD Praha s.r.o. Pražec snímačů polohy pohyblivých výměnových jazyků železniční výhybky

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6158698A (en) * 1999-12-09 2000-12-12 Vae Nortrak North America, Inc. Hollow tie switch assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7168662B1 (en) * 2003-07-07 2007-01-30 Union Switch & Signal, Inc. Hollow tie railroad switching assembly
GB2408062A (en) * 2003-10-28 2005-05-18 Corus Uk Ltd Concrete rail bearer
GB2408062B (en) * 2003-10-28 2006-12-13 Corus Uk Ltd A rail bearer
US20080093508A1 (en) * 2006-10-24 2008-04-24 Union Switch & Signal, Inc. Unitary body hollow tie for a switch machine
US20080093507A1 (en) * 2006-10-24 2008-04-24 Union Switch & Signal, Inc. Concrete tie
US20090095846A1 (en) * 2007-10-10 2009-04-16 The Texas A&M University System Guideway Switching Mechanism
US8215591B2 (en) * 2007-10-10 2012-07-10 The Texas A&M University System Guideway switching mechanism
US20120272856A1 (en) * 2007-10-10 2012-11-01 The Texas A&M University System Guideway Switching Mechanism
US8622352B2 (en) * 2007-10-10 2014-01-07 The Texas A&M University System Guideway switching mechanism

Also Published As

Publication number Publication date
GB0127521D0 (en) 2002-01-09
GB2369144A (en) 2002-05-22
GB2369144B (en) 2002-11-06
DE10057882A1 (de) 2002-05-23

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SCHWIHAG GESELLSCHAFT FUR EISENBAHNOBERBAU MBH, SW

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SCHWIEDE, KARL-HEINZ;REEL/FRAME:012542/0696

Effective date: 20020114

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION