EP0468945A1 - Clamping means and sleeper assembly - Google Patents

Clamping means and sleeper assembly Download PDF

Info

Publication number
EP0468945A1
EP0468945A1 EP91850184A EP91850184A EP0468945A1 EP 0468945 A1 EP0468945 A1 EP 0468945A1 EP 91850184 A EP91850184 A EP 91850184A EP 91850184 A EP91850184 A EP 91850184A EP 0468945 A1 EP0468945 A1 EP 0468945A1
Authority
EP
European Patent Office
Prior art keywords
clamping means
rail
sleeper
foot
unit
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
EP91850184A
Other languages
German (de)
French (fr)
Other versions
EP0468945B1 (en
Inventor
Gerhard Seeger
Mats Aquelius
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT91850184T priority Critical patent/ATE101888T1/en
Publication of EP0468945A1 publication Critical patent/EP0468945A1/en
Application granted granted Critical
Publication of EP0468945B1 publication Critical patent/EP0468945B1/en
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
    • E01B9/28—Fastening on wooden or concrete sleepers or on masonry with clamp members
    • E01B9/30—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips

Definitions

  • the present invention relates to a method of attaching a rail in a railway track to a sleeper.
  • a clamping means is arranged on the sleeper on each side of the rail web.
  • Each clamping means consists of several parts; usually of a clamping plate and a screw. Several loose parts are therefore required to effect attachment and this must also be done manually.
  • When new rails are to be laid it is quite simple to use several parts in order to manually secure the rail.
  • the object of the present invention is to facilitate attaching rails to a sleeper and also to facilitate the removal of a rail from a sleeper.
  • a clamping means is used having a tongue which is pivotably journalled on a sleeper in such a manner that the clamping means can be pivoted into contact against a rail foot and out of contact with said foot.
  • the use of a pivotable clamping means enables extremely simple attachment of a rail to a sleeper and requires only one tool which can turn the clamping means about its axis. Thus, apart from the actual turning tool, there are no loose parts whatsoever. If a rail is to be replaced the clamping means need only be turned from its contact position, thus making replacement extremely easy.
  • a unit can be utilized on rails already laid, said unit being displaced along the rail, thereby turning the clamping means to abutment with the rail foot or turning it out of contact with the rail foot.
  • a clamping means which is secured to a sleeper and which is pivotable about a shaft located substantially perpendicular to the upper side of the sleeper.
  • the clamping means pivotable about an axis, has an outwardly directed flange or tongue which can be turned to abutment with a rail foot or out of abutment with a rail foot.
  • the clamping means with its flange is influenced by a spring.
  • the spring may consist of a helical spring or some other spring device like a rolled laminated spring standing on edge, cup springs, ring springs or Archimedes springs arranged about the axis of oscillation of the clamping means.
  • One end of the spring may be in contact with the clamping means and the other end may abut against a surface at the upper end of the axis of oscillation.
  • the spring itself is so dimensioned that when the clamping means is in contact with the foot of the rail, a pressure is obtained which is sufficient to retain the rail in position when it is used for traffic and at fluctuations in temperature.
  • the temperature in winter may be -50°C and in summer it may be over 40°C.
  • the lower end of the spring may be extended so that it is in contact with the flange or tongue of the clamping means.
  • the clamping means may cooperate with a snap device so that when the clamping means is in operating position, i.e. in contact with the foot of the rail, the snap device will come into operation. In all other positions the snap device will be out of operation.
  • the clamping means may be arranged on a plate secured on the upper side of a sleeper.
  • the axis of oscillation of the clamping means may also be secured inside the sleeper itself, either by means of a tapping arrangement or by grouting. According to the latter alternative, the sleeper itself is made of concrete.
  • Figure 1 shows a rail 1 with head 2, web 3 and foot 4.
  • the foot rests on a sleeper 5.
  • the sleeper is made of concrete and has a shaft 6 grouted into it, the shaft being provided with cavities 7.
  • the function of the cavities is to fix the position of the shaft 6 in the sleeper when the concrete has solidified.
  • the lower end of the shaft may be optionally desired provided the shaft 6 is permanently secured when the concrete has set.
  • a clamping means 9 is applied about the shaft 6, suitably resting on a plate shown in Figure 4 and designated 15. Said plate 15 is suitably permanently joined to the shaft 6.
  • the clamping means 9 is provided with an aperture enabling it to be pivoted about the shaft 6.
  • the clamping means 9 is provided with a radially outwardly directed tongue or flange 10.
  • a helical spring 11 is provided in the clamping means.
  • the other end of the helical spring acts on a plate 12 riveted to the shaft 6 which limits its upward movement. 13 designates the head of a screw or rivet.
  • the lower end 14 of the spring is pulled out and is in contact with the tongue, as shown in Figures 2 and 3.
  • the spring 11 is dimensioned so as to achieve a pressure on the tongue 10 that is sufficient to retain the rail 1 when it is subjected to the stresses caused by traffic and also by temperature fluctuations.
  • Figures 2 and 3 show the clamping means in operation with its tongue in contact with the rail foot, and with the tongue out of its retaining position.
  • clamping means 9 and sleeper 5 may be so designed that when the clamping means assumes the position shown in Figure 2 the snap device will come into operation thereby positioning the clamping means correctly to carry out its retaining function. It is clear from the drawings that the clamping means 9 can be turned to an unlimited extent about its axis 6.
  • the clamping means 9 with parts 6-8 and 10-13 is normally in the form of a prefabricated unit and is therefore easy to apply on a sleeper. If a clamping means is damaged only the head of the screw or rivet need be ground off. Damaged parts can then easily be replaced and a new head welded on.
  • Figure 4 shows a clamping means which functions in exactly the same manner as that illustrated in the previous figures but which differs in that the axis 6 is a tubular shaft secured to a plate 15 attached to the sleeper 5 by means of a screw joint 16.
  • the shaft 6 may comprise a pipe with a screw running through it and penetrating into the sleeper 5 below, thereby securing the clamping means to the sleeper.
  • a threaded sleeve can be grouted into the sleeper 5 if it is made of concrete.
  • the unit may then be designed so that when it passes a clamping means 9 it either turns this to achieve contact with the rail foot or to disengage it from the rail foot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Bridges Or Land Bridges (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Traffic Control Systems (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)

Abstract

A rail (1) in a railway is generally secured to a sleeper (5) with the aid of a clamping plate and screw joint. Attachment is achieved with the aid of several loose parts. The invention avoids loose parts. The sleeper (5) is permanently provided with an outwardly directed flange (10) which is pivotable about a shaft (6) located perpendicular to the upper side of the sleeper (5). The flange (10) can be pivoted into and out of contact with the foot (4) of the rail (1).

Description

  • The present invention relates to a method of attaching a rail in a railway track to a sleeper. A clamping means is arranged on the sleeper on each side of the rail web. Each clamping means consists of several parts; usually of a clamping plate and a screw. Several loose parts are therefore required to effect attachment and this must also be done manually. When new rails are to be laid it is quite simple to use several parts in order to manually secure the rail. However, problems arise when rails already laid are to be replaced and the clamping means are to be removed.
  • The object of the present invention is to facilitate attaching rails to a sleeper and also to facilitate the removal of a rail from a sleeper. According to the invention a clamping means is used having a tongue which is pivotably journalled on a sleeper in such a manner that the clamping means can be pivoted into contact against a rail foot and out of contact with said foot. The use of a pivotable clamping means enables extremely simple attachment of a rail to a sleeper and requires only one tool which can turn the clamping means about its axis. Thus, apart from the actual turning tool, there are no loose parts whatsoever. If a rail is to be replaced the clamping means need only be turned from its contact position, thus making replacement extremely easy.
  • Instead of using a tool to turn the clamping means a unit can be utilized on rails already laid, said unit being displaced along the rail, thereby turning the clamping means to abutment with the rail foot or turning it out of contact with the rail foot.
  • For performance of the method according to the above a clamping means must be used which is secured to a sleeper and which is pivotable about a shaft located substantially perpendicular to the upper side of the sleeper. The clamping means, pivotable about an axis, has an outwardly directed flange or tongue which can be turned to abutment with a rail foot or out of abutment with a rail foot. The clamping means with its flange is influenced by a spring. The spring may consist of a helical spring or some other spring device like a rolled laminated spring standing on edge, cup springs, ring springs or Archimedes springs arranged about the axis of oscillation of the clamping means. One end of the spring may be in contact with the clamping means and the other end may abut against a surface at the upper end of the axis of oscillation. The spring itself is so dimensioned that when the clamping means is in contact with the foot of the rail, a pressure is obtained which is sufficient to retain the rail in position when it is used for traffic and at fluctuations in temperature. The temperature in winter may be -50°C and in summer it may be over 40°C.
  • The lower end of the spring may be extended so that it is in contact with the flange or tongue of the clamping means.
  • The clamping means may cooperate with a snap device so that when the clamping means is in operating position, i.e. in contact with the foot of the rail, the snap device will come into operation. In all other positions the snap device will be out of operation.
  • The clamping means may be arranged on a plate secured on the upper side of a sleeper.
  • The axis of oscillation of the clamping means may also be secured inside the sleeper itself, either by means of a tapping arrangement or by grouting. According to the latter alternative, the sleeper itself is made of concrete.
  • Further characteristics of the present invention are revealed in the appended claims.
  • The invention will be described in more detail in connection with the accompanying four sheets of drawings in which
    • Figure 1 shows a rail on a sleeper and a clamping means anchored to the sleeper.
    • Figures 2 and 3 show the clamping means in two different positions, and
    • Figure 4 shows a different method of securing the clamping means to a sleeper.
  • Figure 1 shows a rail 1 with head 2, web 3 and foot 4. The foot rests on a sleeper 5. The sleeper is made of concrete and has a shaft 6 grouted into it, the shaft being provided with cavities 7. The function of the cavities is to fix the position of the shaft 6 in the sleeper when the concrete has solidified. The lower end of the shaft may be optionally desired provided the shaft 6 is permanently secured when the concrete has set. A clamping means 9 is applied about the shaft 6, suitably resting on a plate shown in Figure 4 and designated 15. Said plate 15 is suitably permanently joined to the shaft 6. The clamping means 9 is provided with an aperture enabling it to be pivoted about the shaft 6. The clamping means 9 is provided with a radially outwardly directed tongue or flange 10. When rotated about the shaft 6 the tongue of the clamping means can either be brought into contact with the foot 4 of the rail or disengaged therefrom. A helical spring 11 is provided in the clamping means. The other end of the helical spring acts on a plate 12 riveted to the shaft 6 which limits its upward movement. 13 designates the head of a screw or rivet. The lower end 14 of the spring is pulled out and is in contact with the tongue, as shown in Figures 2 and 3. The spring 11 is dimensioned so as to achieve a pressure on the tongue 10 that is sufficient to retain the rail 1 when it is subjected to the stresses caused by traffic and also by temperature fluctuations.
  • Figures 2 and 3 show the clamping means in operation with its tongue in contact with the rail foot, and with the tongue out of its retaining position.
  • The actual clamping means 9 and sleeper 5 may be so designed that when the clamping means assumes the position shown in Figure 2 the snap device will come into operation thereby positioning the clamping means correctly to carry out its retaining function. It is clear from the drawings that the clamping means 9 can be turned to an unlimited extent about its axis 6.
  • The clamping means 9 with parts 6-8 and 10-13 is normally in the form of a prefabricated unit and is therefore easy to apply on a sleeper. If a clamping means is damaged only the head of the screw or rivet need be ground off. Damaged parts can then easily be replaced and a new head welded on.
  • Figure 4 shows a clamping means which functions in exactly the same manner as that illustrated in the previous figures but which differs in that the axis 6 is a tubular shaft secured to a plate 15 attached to the sleeper 5 by means of a screw joint 16. The shaft 6 may comprise a pipe with a screw running through it and penetrating into the sleeper 5 below, thereby securing the clamping means to the sleeper. A threaded sleeve can be grouted into the sleeper 5 if it is made of concrete.
  • As is clear from the above, no loose parts whatsoever are required to secure a rail 1 to a sleeper. The only measure required is to turn the clamping means 9 into or out of abutment with the rail foot 4.
  • It should be evident that it is possible to displace a unit along rails already laid. The unit may then be designed so that when it passes a clamping means 9 it either turns this to achieve contact with the rail foot or to disengage it from the rail foot.

Claims (8)

  1. A method of attaching a rail to a crosstie or sleeper where the rail is provided on each side of the web with clamping means with the aid of which the foot of the rail is pressed against the upper side of the sleeper, characterised in that a clamping means (9-14) is used which is pivotably journalled about a shaft (6) on a cooperating sleeper (5) and which is provided with a tongue (10) which can be brought into and out of contact with the foot (4) of the rail (1) and is influenced by spring force (11).
  2. A method as claimed in claim 1, characterised in that each clamping means (9-14) is brought into and out of contact with the foot (4) of the rail (1) via a unit displaceable along the rail (1), said unit being set either to bring a clamping means (9-14) into or out of contact with the foot (4) of the rail (1).
  3. Clamping means for performing the method as claimed in claim 1, characterised in that it comprises a unit (9) provided with an outwardly directed tongue or flange (10) intended for abutment against the foot (4) of the rail (1), that the unit (9) is permanently secured to a cooperating sleeper (5) and pivotable about a shaft (6) located substantially perpendicular to the upper surface of the sleeper (5) and that the unit (9) is spring-influenced (11).
  4. Clamping means as claimed in claim 3, characterised in that the spring force (11) is such that satisfactory clamping effect is obtained when the tongue (10) abuts the foot (4) and when the rail (1) is trafficated.
  5. Clamping means as claimed in one or more of the preceding claims, characterised in that one end (7, 8) of the axis of oscillation of the unit (9) is grouted or bolted into the cooperating sleeper (5).
  6. Clamping means as claimed in one or more of the preceding claims, characterised in that one end of the axis of oscillation (6) of the unit (9) is secured to a plate (15) permanently applied on the sleeper (5) by means of a screw joint (16), for instance.
  7. Clamping means as claimed in one or more of the preceding claims, characterised in that the spring force is obtained, for instance, from a helical spring (11), a laminated spring, a cup spring, a ring spring or an Archimedes spring arranged about said axis of oscillation (6), one end of the helical spring abutting against the unit (9) and the other abutting against a surface (12) at the upper end of the axis of oscillation (6).
  8. Clamping means as claimed in one or more of the preceding claims, characterised in that a snap device is arranged for the unit (9) when its tongue (10) is in contact with the foot (4) of the rail.
EP91850184A 1990-07-19 1991-07-04 Clamping means and sleeper assembly Expired - Lifetime EP0468945B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91850184T ATE101888T1 (en) 1990-07-19 1991-07-04 FASTENER WITH THRESHOLD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9002462 1990-07-19
SE9002462A SE509038C2 (en) 1990-07-19 1990-07-19 Procedure for attaching a rail to a screen and clamping device to enable the method

Publications (2)

Publication Number Publication Date
EP0468945A1 true EP0468945A1 (en) 1992-01-29
EP0468945B1 EP0468945B1 (en) 1994-02-23

Family

ID=20380024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91850184A Expired - Lifetime EP0468945B1 (en) 1990-07-19 1991-07-04 Clamping means and sleeper assembly

Country Status (6)

Country Link
EP (1) EP0468945B1 (en)
AT (1) ATE101888T1 (en)
DE (1) DE69101229T2 (en)
ES (1) ES2049541T3 (en)
RU (1) RU2052556C1 (en)
SE (1) SE509038C2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993023623A1 (en) * 1992-05-13 1993-11-25 Harms & Haffke Gmbh & Co. System for securing rails on the sole plates of a railway track
WO2007065517A1 (en) * 2005-12-07 2007-06-14 Db Netz Ag Fixing means for fixing railway lines to sleepers or stretches of track
US7793857B2 (en) 2005-12-07 2010-09-14 Db Netz Ag Fixing means for fixing railway lines to sleepers or stretches of track
EP3346054B1 (en) 2017-01-10 2021-12-01 Schwihag Ag Tension clamp and rail fastening system for fastening railway rails

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10241851A1 (en) 2002-09-09 2004-03-18 Basf Drucksysteme Gmbh Production of flexographic printing plates, comprises heating exposed flexographic printing element, and removal of softened, unpolymerized parts of relief-forming layer
WO2005116339A1 (en) * 2004-05-25 2005-12-08 Obschestvo S Ogranichennoi Otvetstvennostiyu Sovmestnoe Rossysko-Amerikanskoe Predpriyatie'tehnologiya Xxi Veka' Provisional rail fastening

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1562458A (en) * 1925-06-25 1925-11-24 Bethlehem Steel Corp Metallic railway tie
US3018967A (en) * 1953-03-12 1962-01-30 Khalil Muhammad Method and means for the installation of rail track
GB959113A (en) * 1961-11-29 1964-05-27 Toledo Woodhead Springs Ltd Improvements in or relating to clipping devices for railway rails

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1562458A (en) * 1925-06-25 1925-11-24 Bethlehem Steel Corp Metallic railway tie
US3018967A (en) * 1953-03-12 1962-01-30 Khalil Muhammad Method and means for the installation of rail track
GB959113A (en) * 1961-11-29 1964-05-27 Toledo Woodhead Springs Ltd Improvements in or relating to clipping devices for railway rails

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993023623A1 (en) * 1992-05-13 1993-11-25 Harms & Haffke Gmbh & Co. System for securing rails on the sole plates of a railway track
WO2007065517A1 (en) * 2005-12-07 2007-06-14 Db Netz Ag Fixing means for fixing railway lines to sleepers or stretches of track
US7793857B2 (en) 2005-12-07 2010-09-14 Db Netz Ag Fixing means for fixing railway lines to sleepers or stretches of track
EP3346054B1 (en) 2017-01-10 2021-12-01 Schwihag Ag Tension clamp and rail fastening system for fastening railway rails

Also Published As

Publication number Publication date
SE9002462L (en) 1992-01-20
RU2052556C1 (en) 1996-01-20
DE69101229D1 (en) 1994-03-31
DE69101229T2 (en) 1994-06-01
EP0468945B1 (en) 1994-02-23
ATE101888T1 (en) 1994-03-15
SE509038C2 (en) 1998-11-30
SE9002462D0 (en) 1990-07-19
ES2049541T3 (en) 1994-04-16

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