EP1294985A1 - Schienenklammer und vorrichtung für eine schienenklammerbefestigung - Google Patents

Schienenklammer und vorrichtung für eine schienenklammerbefestigung

Info

Publication number
EP1294985A1
EP1294985A1 EP01945466A EP01945466A EP1294985A1 EP 1294985 A1 EP1294985 A1 EP 1294985A1 EP 01945466 A EP01945466 A EP 01945466A EP 01945466 A EP01945466 A EP 01945466A EP 1294985 A1 EP1294985 A1 EP 1294985A1
Authority
EP
European Patent Office
Prior art keywords
clip
slot
width
rail
plate
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
EP01945466A
Other languages
English (en)
French (fr)
Other versions
EP1294985B1 (de
Inventor
Barry Marshall
Christopher Gardner
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.)
Pandrol Ltd
Original Assignee
Pandrol Ltd
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 Pandrol Ltd filed Critical Pandrol Ltd
Priority to SI200130531T priority Critical patent/SI1294985T1/sl
Publication of EP1294985A1 publication Critical patent/EP1294985A1/de
Application granted granted Critical
Publication of EP1294985B1 publication Critical patent/EP1294985B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
    • E01B9/44—Fastening the rail on the tie-plate
    • E01B9/46—Fastening the rail on the tie-plate by clamps
    • E01B9/48—Fastening the rail on the tie-plate by clamps by resilient steel clips
    • E01B9/486—Fastening the rail on the tie-plate by clamps by resilient steel clips the clip being a shaped plate

Definitions

  • the present invention relates to a railway rail clip and device for a railway rail fastening assembly.
  • a well-known type of railway baseplate known as a K-plate, comprises a central rail seat area on each longitudinal side of which there is formed a rib through which there is. a slot extending transversely with respect to the rail. The width of the slot varies in a vertical direction such that the width of the slot at the lower part of the rib is greater than the width of the slot at the upper part .
  • a large variety of different rail clips may be used with the K-plate, but they are generally all of the type having a substantially D-shaped profile, one end of the clip forming a base portion for engaging in the lower wider part of the slot and a toe portion which bears on the rail foot, the toe portion being shaped such that it cannot be unintentionally withdrawn through the narrower upper part of the slot.
  • Some clips which are used with the K-plate such as those described in US3067947 and US4313563, have a toe portion comprising two arms which must be compressed to pass through the upper part of the slot on installation of the clip and are then allowed to spring back to prevent withdrawal, but special tools are usually required to achieve the desired compression of the toe portion.
  • a railway rail fastening clip for use on a railway rail baseplate of the type having a central rail seat area on each longitudinal side of which there is formed a rib having a slot therethrough extending transversely with respect to the rail such that the width of the slot at a lower part thereof is greater than the width of the slot at an upper part thereof
  • which clip comprises an elongate member bent such that first and second end regions of the member form respective lower and upper limb portions, the lower limb portion forming a base portion of the clip for engaging .the slot in the baseplate and the upper limb portion extending further than the lower limb portion to form at its free end a toe portion of the clip for bearing on a rail foot, wherein the toe portion is not bifurcated and the width of the toe portion of the clip is narrower than the width of the upper part of the slot in the baseplate whereas the width of the lower limb portion of the clip is broader than the width of the upper part of the slot in the base
  • the base portion is preferably centrally bifurcated so as to have a pair of legs, which desirably have rounded outer top edges.
  • the width of at least part of the clip tapers progressively between the base portion and the toe portion.
  • the toe portion and the base portion are of constant width.
  • the clip is preferably made from elongate plate- form material .
  • the clip comprises, proceeding from the first end region to the second end region thereof, firstly a substantially flat base portion, then a bent rear portion, then a substantially flat intermediate portion, and lastly a bent front portion.
  • a railway rail fastening assembly comprising a railway rail fastening clip in accordance with the first aspect of the present invention and a device comprising a plate portion for location on the rail foot, wherein the plate portion is provided with an abutment surface for abutting the toe portion of the railway rail fastening clip so as to prevent unintentional withdrawal of the clip from the rail.
  • the abutment surface is formed by one side of a -ridge provided on the said plate portion, the ridge desirably extending along an edge of the said plate portion.
  • the device further comprises a ramp portion arranged so as to extend laterally from the plate portion such that when the plate portion is located on the rail foot the ramp portion projects downwardly.
  • the ramp portion preferably extends from the edge of the plate portion adjacent to the ridge. In a preferred form of such an assembly, in use the ramp portion of the device extends between the legs of the clip.
  • Figure 1 shows a plan view of a rail fastening assembly embodying the present invention
  • Figure 2A shows a cross-sectional view taken on line II-II in Figure 1 and Figure 2B shows a side view of the rail fastening assembly of Figure 1;
  • Figure 3 shows a partially cut-away plan view of the rail fastening assembly of Figure 1;
  • Figure 4 shows a side view of a rail fastening clip embodying the first aspect of the present invention in its unstressed configuration
  • Figure 5 shows an underneath plan view of the clip shown in Figure 4;
  • Figure 6 shows a cross-sectional view taken on the line VI-VI in Figure 4;
  • Figure 7 shows a plan view of a device for use in an assembly embodying the second aspect of the present invention;
  • Figure 8 shows a side view of the device of Figure 7;
  • Figure 9 shows a cross-sectional view of the rail fastening assembly of Figure 1 in which the clip is in a partially installed position
  • Figure 10 shows a view of a slot in a K-plate.
  • the railway fastening assembly of Figures 1, 2A, 2B and 3 comprises a railway rail fastening clip 10 and a device 20.
  • the clip 10 is shown in its operative configuration, located in a slot 31 formed in a rib 30 of a K-plate 40, held down to an underlying sleeper (not shown) by screwspikes 50 (screwspike not shown in Fig. 2A) .
  • the device 20, provided on the foot 65 of the rail 60 serves to retain the clip 10 in the slot 31 (device 20 not shown in Figure 2B) .
  • the rail foot provided on the foot 65 of the rail 60
  • FIGS. 4 to 6 show the clip 10 in more detail.
  • the clip 10 comprises an elongate member of plate-form material which has been bent such that respective first and second end regions of the elongate member are adjacent to one another and form respective lower and upper limb portions 11, 12.
  • the clip 10 has a bent rear portion 13, a substantially flat intermediate portion 14 and a bent front portion forming the upper limb portion 12.
  • the ree end of the upper limb portion 12 forms a toe portion 15 of the clip 10 for bearing on the foot 65 of the rail 60 and the legs 16, 17 of the lower limb portion 11 form a base portion 19 of the clip 10 for engaging the slot 31 in the rib 30 of the K-plate 40.
  • the legs 16, 17 may have slightly rounded outer top edges so as to avoid .damage to the slot 31 on installation of the clip.
  • the toe portion 15 is not bifurcated and its width is narrower than the width of an upper part 31a of the slot 31.
  • the width of the lower limb portion 11 is broader than the upper part 31a of the slot 31.
  • a device 20 is shown in more detail in Figures 7 and 8.
  • the device 20 comprises a plate portion 21, which is substantially rectangular, and a ramp portion 25 extending therefrom.
  • the plate portion 21 has a centrally-located toe receiving region 22 extending lengthwise of the rectangular plate member 21, bordered on one long side by a ridge 23 extending the length of the plate member 21 and on the other long side by a downwardly tapering region 24.
  • the ramp portion 25 extends from the ridge side of the plate member 21 but does not extend along the entire length of that side; instead it is shaped so as to fit within the gap 18 between the legs 16 and 17 of the clip 10 when it is fully installed in the slot 31.
  • Ramp portion 25 provides a ramp up which the toe portion 15 of the clip 10 rides as the clip is driven into the slot 31.
  • the toe portion 15 of the clip 10 reaches the top of the ramp 25 it rides over the top of the ridge 23 and comes to rest on the toe receiving region 22 on the other side of the ridge 23, the ridge 23 providing an abutment surface 23 ' against which the toe portion 15 of the clip 10 will abut if the clip 10 is drawn away from the rail, thereby preventing unintentional withdrawal of the clip 10 from ,the slot 31.
  • the free end of the ramp portion 15 rests on the floor of the slot- 31 so as to receive the toe portion 15 of the clip 10 as it is introduced into the slot 31.
  • the toe portion 15 of the clip 10 rides up the ramp portion 25 and over the ridge 23 it exerts pressure on first the ramp portion 25 and then the plate portion 21 of the device 20 and the device 20 tilts so that the underside of the plate portion 21 of the device 20 lies flat against the rail foot 65.
  • the ridge 23 may not extend the entire length of the plate member 21; for example, it might extend only the length of the toe portion 15 of the clip 10.
  • the ramp 25 may be omitted and the clip pulled up and over the ridge 23.
  • Figure 10 shows the shape of a slot 31 in a typical K-plate 40.
  • the angle ⁇ of the surface contacted by the legs 16, 17 of the clip 10, when it is fully installed in the slot 31, is typically 30°. If the legs 16, 17 of the clip 10 have substantially square edges, those edges will dig into the walls of the slot 31 on installation of the clip 10. However, this can be avoided by rounding the profile of the legs 16, 17, so as to more closely approximate the profile of the slot 31, for example as shown in Figures 4 and

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Connection Of Plates (AREA)
  • Clamps And Clips (AREA)
  • Sheet Holders (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
EP01945466A 2000-06-30 2001-06-22 Schienenklammer und grundplatte für eine schienenklammerbefestigung Expired - Lifetime EP1294985B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200130531T SI1294985T1 (sl) 2000-06-30 2001-06-22 Zelezniska tirnicna spojka in talna plosca za pritrdilni sestav za zeleznisko tirnico

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0016221 2000-06-30
GBGB0016221.4A GB0016221D0 (en) 2000-06-30 2000-06-30 Railway rail clip device for railway rail fastening assembly
PCT/GB2001/002797 WO2002002873A1 (en) 2000-06-30 2001-06-22 Railway rail clip and device for railway rail fastening assembly

Publications (2)

Publication Number Publication Date
EP1294985A1 true EP1294985A1 (de) 2003-03-26
EP1294985B1 EP1294985B1 (de) 2006-05-24

Family

ID=9894860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01945466A Expired - Lifetime EP1294985B1 (de) 2000-06-30 2001-06-22 Schienenklammer und grundplatte für eine schienenklammerbefestigung

Country Status (10)

Country Link
EP (1) EP1294985B1 (de)
AT (1) ATE327380T1 (de)
AU (1) AU2001267681A1 (de)
BR (1) BR0112282A (de)
CZ (1) CZ299388B6 (de)
DE (1) DE60119928T2 (de)
GB (2) GB0016221D0 (de)
HU (1) HU225556B1 (de)
SK (1) SK286815B6 (de)
WO (1) WO2002002873A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6643318B1 (en) 1999-10-26 2003-11-04 Golden Bridge Technology Incorporated Hybrid DSMA/CDMA (digital sense multiple access/code division multiple access) method with collision resolution for packet communications
GB2392193B (en) * 2002-08-22 2005-11-02 Pandrol Ltd Railway rail fastening assembly
GB201101720D0 (en) 2011-02-01 2011-03-16 Pandrol Ltd Railway rail fastening clips and insulator
HUP1600654A2 (en) 2016-12-07 2018-06-28 Hr System Hungary Zrt Rail fastening device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067947A (en) 1959-07-17 1962-12-11 Everts & Van Der Weyden N V Fastener of a rail on a support by means of a resilient clamp
US3881652A (en) * 1973-03-20 1975-05-06 Gerald Jacobson Rail fastening assembly
US4313563A (en) 1978-06-27 1982-02-02 Ralph Mckay Limited Rail fastener
GB9620203D0 (en) * 1996-09-27 1996-11-13 Pandrol Ltd Manufacturing elastic rail clamps
WO1997030224A1 (en) * 1996-02-13 1997-08-21 Pandrol Limited Elastic rail clamps

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0202873A1 *

Also Published As

Publication number Publication date
GB0016221D0 (en) 2000-08-23
SK17322002A3 (sk) 2003-09-11
CZ299388B6 (cs) 2008-07-09
HUP0301419A2 (en) 2003-09-29
BR0112282A (pt) 2003-05-13
AU2001267681A1 (en) 2002-01-14
CZ20024158A3 (cs) 2003-06-18
DE60119928T2 (de) 2006-09-28
GB0103913D0 (en) 2001-04-04
ATE327380T1 (de) 2006-06-15
SK286815B6 (sk) 2009-06-05
HU225556B1 (en) 2007-03-28
EP1294985B1 (de) 2006-05-24
WO2002002873A1 (en) 2002-01-10
DE60119928D1 (de) 2006-06-29

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