US3848713A - Ball-joint support device for a rail conductor of a current-collecting system - Google Patents

Ball-joint support device for a rail conductor of a current-collecting system Download PDF

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Publication number
US3848713A
US3848713A US00363259A US36325973A US3848713A US 3848713 A US3848713 A US 3848713A US 00363259 A US00363259 A US 00363259A US 36325973 A US36325973 A US 36325973A US 3848713 A US3848713 A US 3848713A
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US
United States
Prior art keywords
rail
shoes
support
support device
rail conductor
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
US00363259A
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English (en)
Inventor
D Laurent
H Ligones
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.)
Dauphinoise Electrique SA
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Dauphinoise Electrique SA
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.)
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Publication date
Application filed by Dauphinoise Electrique SA filed Critical Dauphinoise Electrique SA
Application granted granted Critical
Publication of US3848713A publication Critical patent/US3848713A/en
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Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • This invention relates to a support device for a current-distributing rail supplying current to currentcollecting means sliding along the rail and relates more particularly to a support device slidably supporting the rail to permit thermal expansion and contraction movements of the rail on its support.
  • An ancillary object is to improve the mounting facilities of the rail on the support members thereof with less stringent alignment requirements for the clamp members.
  • FIG. 1 is a cross-sectional elevational view of a support device according to the invention
  • FIG. 2 is an elevational side view of the device of FIG. 1;
  • FIG. 3 is a schematic plan view showing in full lines the normal operating position of the rail and in dashed lines an (exagerated) oblique position of the rail; and FIG. 4 shows another embodiment of the invention viewed as in FIG. 1.
  • a conductor rail 10 such as an extruded aluminum rail, having an upper V-shaped contact surface 12 adapted for slidable engagement with movable correspondingly shaped current-collecting contact shoes (not shown).
  • the side faces of the rail have truncated-V-shaped recesses or fishing spaces comprising dihedral plane faces 14 and 16 which are engaged by correspondingly shaped plane faces of a pair of generally wedge-shaped support shoes 18 and 20, one of which is disposed on each side of the rail.
  • An insulator 22 supports the shoes 18 and 20 and the rail through a clamp member 36, 38, 40 and a plurality of support devices as shown in FIGS. 1 and 2 is spaced apart along the rail to support the latter at convenient intervals.
  • the back or outer side of the shoes 18 defines a spherical socket or recess 24, 26, respectively, which is concentric with an associated spherical socket 32, 34, made in the confronting inner side of the flanges 36, 38, respectively, of the clamp members.
  • a ball 28 is lodged in the sockets 24 and 32 and another ball in the sockets 26 and 34 so as to provide a pair of balljoints.
  • Each socket has a total ball-engaging surface which is smaller than the surface of a semi-sphere to permit a small universal rotary motion of the shoes with respect to the clamp member.
  • the latter comprises a U-shaped bracket having a flange 36, which forms a unitary structure with the web portion 40, and another flange 38 which extends substantially parallel to the flange 36 but which is pivotally mounted at its lowermost end to the web portion 40 by a cylindrical roller 42 lodged in semi-cylindrical recesses of the flange 38 and of the web portion 40, respectively.
  • a resilient wire spring 44 embraces the flange 38 and urges the latter towards the flange 36. The spring 44 holds at the same time the roller joint 42 in position.
  • the spring 44 urges the support shoes 18 and 20 against the side faces of the rail 10 through the flanges 36 and 38 and the balls 28 and 30.
  • the rail In its normal position, the rail is centered by the shoes 18 and 20 in such a manner that the centers of the balls 28 and 30 are aligned perpendicularly to the longitudinal direction of the rail 10.
  • the longitudinal thermal movements of the rail 10 cause a sliding motion of the latter with respect to the support shoes 18 and 20. Nevertheless, small pivoting movements of the rail with respect to the fixed elements of the support members are possible in all directions.
  • FIG. 3 shows such a rotation after which the rail 10 and the shoes 18 and 20 occupy a position 10, 18' and 20, respectively.
  • the shoes 18 and 20 pivot about the balls 28 and 30, respectively, whereby the latter are slightly separated (as shown at 30 for ball 30). A corresponding separation of the flanges 36 and 38 then takes place against the action of the spring 44 whereby the flange 38 pivots slightly about roller 42.
  • the support shoes 18' and 20 are offset one with respect to the other, as shown at 18' and 20. In the oblique position, the rail remains perfectly positioned and supported by the support shoes 18 and 20 which are permanently urged in the direction of the arrows F and F by the spring 44. As the rail can freely slide between the shoes 18 and 20, any jamming is excluded.
  • the final step consistsin the mounting of the flange 38 on the assembly.
  • FIG. 4 shows another embodiment in which the flange 38 is secured by means of a bolt 46 traversing the flange 36 and a conical spring washer 48.
  • a stationary support device for a current supplying rail conductor comprising:
  • a support device according to claim 2, one of said flanges being pivotally mounted, said clamp means comprising resilient means biasing said one flange towards the other flange.
  • a support deveice according to claim 1 said side faces of said rail conductor and of said support shoes engaging one another along dihedrally extending planes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
US00363259A 1972-06-06 1973-05-23 Ball-joint support device for a rail conductor of a current-collecting system Expired - Lifetime US3848713A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7220396A FR2188337B1 (enrdf_load_stackoverflow) 1972-06-06 1972-06-06

Publications (1)

Publication Number Publication Date
US3848713A true US3848713A (en) 1974-11-19

Family

ID=9099792

Family Applications (1)

Application Number Title Priority Date Filing Date
US00363259A Expired - Lifetime US3848713A (en) 1972-06-06 1973-05-23 Ball-joint support device for a rail conductor of a current-collecting system

Country Status (4)

Country Link
US (1) US3848713A (enrdf_load_stackoverflow)
JP (1) JPS4956303A (enrdf_load_stackoverflow)
DE (1) DE2328487A1 (enrdf_load_stackoverflow)
FR (1) FR2188337B1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6158761A (en) * 1999-05-10 2000-12-12 Tennessee Truck Works, L.L.C. Accessory mounting apparatus for a pickup truck
US20090120753A1 (en) * 2005-03-23 2009-05-14 Robin Kalitzki Conductor Rail Support
CN102259601A (zh) * 2011-06-16 2011-11-30 江苏凯邦轨道交通器材有限公司 滚珠压接式供电轨的膨胀接头

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018860C2 (de) * 1980-05-16 1984-03-08 Siemens AG, 1000 Berlin und 8000 München Stromschienenträger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1089632A (en) * 1913-09-03 1914-03-10 Eligah H Field Railroad angle-bar.
US1194574A (en) * 1916-08-15 Clamp bail-joint
US2808996A (en) * 1954-09-15 1957-10-08 Poor & Co Boltless rail joint

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1499152A (fr) * 1966-05-12 1967-10-27 Verlinde Sa Poutres roulantes articulées

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1194574A (en) * 1916-08-15 Clamp bail-joint
US1089632A (en) * 1913-09-03 1914-03-10 Eligah H Field Railroad angle-bar.
US2808996A (en) * 1954-09-15 1957-10-08 Poor & Co Boltless rail joint

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6158761A (en) * 1999-05-10 2000-12-12 Tennessee Truck Works, L.L.C. Accessory mounting apparatus for a pickup truck
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
CN102259601A (zh) * 2011-06-16 2011-11-30 江苏凯邦轨道交通器材有限公司 滚珠压接式供电轨的膨胀接头

Also Published As

Publication number Publication date
FR2188337B1 (enrdf_load_stackoverflow) 1976-10-29
JPS4956303A (enrdf_load_stackoverflow) 1974-05-31
FR2188337A1 (enrdf_load_stackoverflow) 1974-01-18
DE2328487A1 (de) 1973-12-20

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