US3835268A - Conductor rail mountings - Google Patents

Conductor rail mountings Download PDF

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Publication number
US3835268A
US3835268A US00340780A US34078073A US3835268A US 3835268 A US3835268 A US 3835268A US 00340780 A US00340780 A US 00340780A US 34078073 A US34078073 A US 34078073A US 3835268 A US3835268 A US 3835268A
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US
United States
Prior art keywords
assembly
cushion
cushions
frame elements
rail
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.)
Expired - Lifetime
Application number
US00340780A
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English (en)
Inventor
P Bommart
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.)
Acieries de Gennevilliers SA
Original Assignee
Acieries de Gennevilliers SA
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Filing date
Publication date
Application filed by Acieries de Gennevilliers SA filed Critical Acieries de Gennevilliers SA
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Publication of US3835268A publication Critical patent/US3835268A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00—Power supply lines for contact with collector on vehicle
    • B60M1/30—Power rails
    • B60M1/307—Supports

Definitions

  • a conductor rail mounting comprising a conductor rail member clamped to a support member with the. interposition of at least one cushion having a filling of resilient material and a cover for contacting at least one of the said members, the cover being formed from a material having a coefficient of friction substantially lower than that of the filling.
  • Rigid conductor rails of this kind conventionally comprise conductor rail members or assemblies mounted in alignment on generally insulating supports.
  • the rails may be simple conductor rails of metal, such as steel or copper, or they may be of more elaborate or complex form, for example comprising aluminium coated with stainless steel.
  • Such structures will be referred to herein as rail members, it being understood that this term is tobe interpreted in the widest sense.
  • the main problem encountered in the mounting of rigid conductor rails is that of securing the rail member to the supports.
  • the mounting must ensure the positioning and mechanical behavior of the rail member which must be comparatively rigid as regards transverse movement, while at the same time having a certain tolerance or freedom to move in a longitudinal direction, more particularly so that expansion can take place freely.
  • expansion arises from a wide variation of temperature to which the rail member may be subjected, in some cases due to heating produced by the electric current flowing through it, and in addition due to variation in ambient temperature which may be considerable, particularly when the rail is in the open.
  • An object of the present invention is to provide a simple and effective form of mounting meeting these requirements.
  • a conductor rail comprises a conductor rail member clamped to a support member with the interposition of at least one cushion having a filling of resilient material and a cover for contacting at least one of the said members, the cover being formed from a material having a coefficient of friction substantially lower than that of the filling.
  • the cover completely encloses the filling and contacts both the rail and the support, for example it may be afforded by a tube having its ends flattened.
  • the cushion may be of elongated form extending parallel to the length of the conductor rail.
  • the cushion may be of electrically insulating material in which case it may serve to insulate or assist in insulating the rail from the support.
  • the cover may be .formed of polytetrafluoroethylene, while the filling may be formed of natural or synthetic rubber such as neoprene.
  • each cushion is fixed to the support independently, for example it may be partially received in a cavity in the support.
  • each cushion has at each end a ring which is flattened to clamp the ends of its cover and which is secured to the support and serves to fix the cushion to it.
  • At least two cushions are previously mounted on frame elements to form an assembly matching the shape of the part of the rail with which they co-operate.
  • the ends of the cushions may be gripped between opposed surfaces of the frame elements to secure the cushions to the said elements.
  • FIG. 1 is a diagrammatic cross section of the mounting according to the invention of a rail on a support.
  • FIG. 2 is a section on the line II-II in FIG. 1.
  • FIG. 3 is a perspective view of an assembly of clamping and sliding cushions used in a first embodiment of the invention, FIG. 3a being a variant of FIG. 3.
  • FIG. 4 is a perspective view of an individual cushion in a second embodiment of the invention.
  • FIG. 5 is a longitudinal section of the mounting of the individual cushion of FIG. 4 on the support S.
  • FIGS. 6 and 7 are transverse sections respectively on the lines VI-VI and VIP-VII in FIG. 5.
  • FIG. 1 shows a conductor rail R which is to be fixed on an insulating support S, which is shown only partially.
  • the top part of the rail is held in the support S between the body 10 of the support and a jaw 11 secured to the body by means of bolts 12.
  • the body 10 and the jaw 11 have opposed recesses 10a and 11a, the general shape of which corresponds to that of the top part of the rail R is of a slightly larger SIZC.
  • each cushion 20 comprises an outer cover 20a formed of a material having a low coefficient of friction, for example from a tube of polytetrafluoroethylene (Teflon), and a resilient inner filling 20b formed, for example, from a rod or cord of Neoprene (Shore hardness: 50/60).
  • Teflon polytetrafluoroethylene
  • Neoprene Neoprene
  • each frame element 21 is a sheet-metal channel bent to the shape of the top part of the rail, and having its ends 22 folded over to grip and clamp the end portions 20a and 20a of the cover 20a of each cushion, which extend beyond the filling.
  • the mounting according to the invention has the following secondary advantages: firstly, it is remarkably durable because the outer cover of the cushions is insensitive to atmospheric agents, and also protects the resilient inner filling. Secondly, the high elasticity of the cushions allows any incorrect alignment of the insulating support S with respect to the conductor rail to be compensated. It should also be noted that the resilience of the cushions makes the system according to the invention very effective against vibration. The cushions also form a prime factor in the electrical insulation of the rail circuit. It should also be noted that the use of separate cushions as clamping and sliding elements obviates any accumulation of dust and foreign bodies at the clamping zone.
  • FIG. 3a illustrates a variant in the mounting of a set of cushions 20.
  • the ends 20a and 20a of the cover 200 are clamped between two separate bent sheet-metal frame elements 30, each element having a general U-shape, as well as being of U section.
  • FIGS. 4 to 7 show another embodiment in which the cushions are directly and individually secured to the support.
  • the cushion 120 again comprises an outer tubular cover 120a made of Teflon, and an inner filling 120k made of Neoprene.
  • the cover 1200 is clamped in a ring 121, for example of copper, the, ring, which is initially of circular shape, being pressed and flattened as shown in FIG. 4 to clamp and retain the ends of the tubular cover 120a.
  • the two flattened rings 121 comprise a substantially plane contact and support surface 121a (FIG. 4).
  • each cushion 120 is mounted in a groove A formed in the insulating support S.
  • the support surfaces 1210 of the rings 121 are secured, as by adhesive, to the wall of the groove A.
  • only the central part of the cushion 120 projects slightly from the support S.
  • the section of the groove A corresponds to the shape of the rings 121 and the central part of the pad.
  • FIGS. 4 to 7 retains all the advantages of the invention, which is not limited to the two embodiments described.
  • a conductor rail assembly comprising a conductor rail member clamped to a support member, and a plurality of rod-like cushions interposed between said members, each of said cushions having an inner filling of resilient material and an outer cover contacting both of said members, said cover being formed of a material having a low coefficient of friction.
  • each of said tubular cushions extends parallel to the longitudinal axis of said rail member.
  • each cushion is independently fixed to said support member.
  • each cushion is partially received in acavity in said support member.
  • each cushion has at each end a ring which is flattened to clamp the ends of its cover, each ring being secured to said support member and serving to fix its respective cushion to said support member.
  • a rod-like cushion for interposition between a conductor rail member and a support member to which the rail member is secured, said cushion comprising an outer tube of material having a low coefficient of friction, and a filling of resilient material within said tube.
  • a cushion assembly comprising a plurality of cushions as claimed in claim 9, and a pair of frame elements, all the corresponding ends of said cushions being secured to one of said frame elements and all the opposite corresponding ends of said cushions being secured to the other of said frame elements, and said frame elements each having a shape corresponding to a portion of the cross-sectional shape of the rail with which the cushion assembly is to be used.
  • each of said frame elements has a U-shaped cross-section, the ends of said cushions being clamped within said U-shaped section.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Railway Tracks (AREA)
  • Vibration Prevention Devices (AREA)
  • Insulators (AREA)
US00340780A 1972-03-17 1973-03-16 Conductor rail mountings Expired - Lifetime US3835268A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7209437A FR2175670B1 (fr) 1972-03-17 1972-03-17

Publications (1)

Publication Number Publication Date
US3835268A true US3835268A (en) 1974-09-10

Family

ID=9095400

Family Applications (1)

Application Number Title Priority Date Filing Date
US00340780A Expired - Lifetime US3835268A (en) 1972-03-17 1973-03-16 Conductor rail mountings

Country Status (10)

Country Link
US (1) US3835268A (fr)
BE (1) BE796891A (fr)
BR (1) BR7301877D0 (fr)
CA (1) CA967650A (fr)
CH (1) CH572827A5 (fr)
DE (1) DE2312688A1 (fr)
ES (1) ES412632A1 (fr)
FR (1) FR2175670B1 (fr)
GB (1) GB1430197A (fr)
IT (1) IT981401B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090120753A1 (en) * 2005-03-23 2009-05-14 Robin Kalitzki Conductor Rail Support
WO2013127802A3 (fr) * 2012-02-28 2013-10-31 SPL Powerlines Austria GmbH & Co. KG Support isolant pour un rail conducteur pour des véhicules ferroviaires à entraînement électrique
CN108909538A (zh) * 2018-06-22 2018-11-30 苏州大成电子科技有限公司 一种绝缘弹性接触轨支架

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9114501U1 (de) * 1991-11-21 1992-01-16 REHAU AG + Co, 8673 Rehau Isolationsträger für Stromschienen
DE29508813U1 (de) * 1995-05-27 1995-08-17 Rehau Ag + Co, 95111 Rehau Isolationsträger für Stromschienen
US6938742B2 (en) * 2001-06-18 2005-09-06 Furrer & Frey Ag Conductor rail fish-plate
DE202012102995U1 (de) * 2012-08-09 2013-11-13 Rehau Ag + Co Vorrichtung zur Fixierung von Schienen
CN108909540A (zh) * 2018-06-22 2018-11-30 苏州大成电子科技有限公司 一种可调节接触轨支架

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US726599A (en) * 1903-02-24 1903-04-28 Leonard Wheeler Third-rail support for underrunning third-rail electric railways.
US2407400A (en) * 1943-05-19 1946-09-10 Clark W Chamberlain Method and apparatus for molecular absorption of vibration
US3335955A (en) * 1965-08-26 1967-08-15 Fabreeka Products Co Shock-reducing pad for travelling crane rails

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US726599A (en) * 1903-02-24 1903-04-28 Leonard Wheeler Third-rail support for underrunning third-rail electric railways.
US2407400A (en) * 1943-05-19 1946-09-10 Clark W Chamberlain Method and apparatus for molecular absorption of vibration
US3335955A (en) * 1965-08-26 1967-08-15 Fabreeka Products Co Shock-reducing pad for travelling crane rails

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090120753A1 (en) * 2005-03-23 2009-05-14 Robin Kalitzki Conductor Rail Support
US7703589B2 (en) * 2005-03-23 2010-04-27 Siemens Aktiengesellschaft Conductor rail support
WO2013127802A3 (fr) * 2012-02-28 2013-10-31 SPL Powerlines Austria GmbH & Co. KG Support isolant pour un rail conducteur pour des véhicules ferroviaires à entraînement électrique
CN108909538A (zh) * 2018-06-22 2018-11-30 苏州大成电子科技有限公司 一种绝缘弹性接触轨支架

Also Published As

Publication number Publication date
BR7301877D0 (pt) 1974-07-11
CH572827A5 (fr) 1976-02-27
FR2175670A1 (fr) 1973-10-26
GB1430197A (en) 1976-02-18
DE2312688A1 (de) 1973-09-27
CA967650A (en) 1975-05-13
IT981401B (it) 1974-10-10
FR2175670B1 (fr) 1976-08-06
ES412632A1 (es) 1976-01-01
BE796891A (fr) 1973-07-16

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