EP0543039B1 - Rail for supplying current to mobile electrical appliances - Google Patents

Rail for supplying current to mobile electrical appliances Download PDF

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Publication number
EP0543039B1
EP0543039B1 EP91119787A EP91119787A EP0543039B1 EP 0543039 B1 EP0543039 B1 EP 0543039B1 EP 91119787 A EP91119787 A EP 91119787A EP 91119787 A EP91119787 A EP 91119787A EP 0543039 B1 EP0543039 B1 EP 0543039B1
Authority
EP
European Patent Office
Prior art keywords
profile
section
sliding surface
insulating
metal
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
EP91119787A
Other languages
German (de)
French (fr)
Other versions
EP0543039A1 (en
Inventor
Udo Heuser
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.)
Fahrleitungsbau GmbH
Original Assignee
Fahrleitungsbau GmbH
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 Fahrleitungsbau GmbH filed Critical Fahrleitungsbau GmbH
Priority to ES91119787T priority Critical patent/ES2071193T3/en
Priority to EP91119787A priority patent/EP0543039B1/en
Priority to DK91119787.9T priority patent/DK0543039T3/en
Priority to AT91119787T priority patent/ATE121575T1/en
Priority to DE59105279T priority patent/DE59105279D1/en
Publication of EP0543039A1 publication Critical patent/EP0543039A1/en
Application granted granted Critical
Publication of EP0543039B1 publication Critical patent/EP0543039B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length

Definitions

  • the invention relates to a busbar for the power supply of movable power consumers with a current collector movable along the busbar, consisting of an open cross-section metal profile and a metal profile receiving, substantially U-shaped insulating profile made of plastic, the metal profile between the two U-flanges of the insulating profile has a grinding surface and, on the side facing away from the grinding surface, has a connector connection surface in a longitudinal rail cavity.
  • Open cross section means in the context of the invention that the metal profile is not a completely closed hollow profile.
  • Busbars of the type mentioned are known in practice in various embodiments.
  • the connector connection surface of such busbars is required in particular at the ends of the busbar for connecting further busbars and must consequently be exposed in order to produce the electrical contact.
  • the longitudinal rail cavity is more or less covered by the metal profile.
  • the insulating profile is made separately from the metal profile, whereupon the metal profile is inserted into the insulating profile.
  • the design is usually made so that the metal profile alone meets all requirements in terms of stability, while the insulating profile is practically only an insulating aid. Basically, of course, there is an effort to manufacture such busbars cheapen. In this respect, we are generally familiar with the technology of extruding plastic profiles onto metal profiles.
  • the metal profile with an open cross section fluctuates in thickness.
  • the metal profile can be adapted to corresponding tool surfaces either with the grinding surface or the connector connection surface, so that no plastic can get there. Due to the unavoidable fluctuations in thickness in the metal profile, however, it cannot be prevented that the other surface is covered by a covered plastic layer of the insulating profile. Of course, this is annoying for later use, since the corresponding area has to be exposed, but this usually causes considerable difficulties.
  • the invention has for its object to simplify a busbar of the type mentioned so that it is inexpensive to manufacture, but does not cause any problems in functional terms.
  • the invention provides that the insulating profile extruded onto the metal profile in the area of the grinding surface and / or the connector connection surface consists of a different plastic than the rest of the insulating profile.
  • the invention is based on the knowledge that the covering of the grinding surface and / or the connector connection surface is accepted in the course of the extrusion of the insulating profile can be achieved if you work with two different plastics that do not form a particularly strong bond with one another in the course of extrusion.
  • the other plastic located in the area of the grinding surface or the connector connection surface can then be pulled off relatively easily or pushed back into the longitudinal rail cavity when using the busbar.
  • a preferred embodiment is recommended in which the metal profile is essentially flat in the area of the grinding surface and the connector connection surface and is anchored in the insulating profile with angled longitudinal edges.
  • the advantage here is that relatively little material is required for the metal profile due to the U-shape.
  • the required stability of the conductor rail as a whole can easily be achieved in combination with the insulating profile, especially since the metal profile and the insulating profile are firmly connected to one another.
  • a particularly suitable material combination for the insulating profile consists of polyethylene in the area of the grinding surface or the connector connection surface, otherwise of hard polyvinyl chloride.
  • the busbar shown in the figure is used to supply power to movable power consumers with pantographs that can be moved along the busbar.
  • it consists of an open cross-section having metal profile 1 and a substantially U-shaped insulating profile 2 made of plastic which accommodates the metal profile 1.
  • the metal profile 1 is provided between the two U-flanges 3 of the insulating profile 2 with a grinding surface 4 and on the side facing away from the grinding surface 4 in a longitudinal rail cavity 5 with a connector connection surface 6.
  • the insulating profile 2 extruded onto the metal profile 1 in the area of the grinding surface 4 and in the area of the connector connection area 6 consists of a different plastic 7 than the rest of the insulating profile, specifically the insulating profile in the area of the grinding area 4 or the connector pad 6 made of polyethylene, but otherwise made of hard polyvinyl chloride.
  • the polyethylene strips 7 can be easily pulled off or removed.
  • the metal profile 1 is more or less U-shaped, i. H. in the area of the grinding surface 4 and connector connection surface 6, the metal profile 1 is essentially flat, while it is anchored in the insulating profile 2 with longitudinal edges 8 which are angled toward the free ends of the U-flanges 3 of the insulating profile 2.

Landscapes

  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Processing Of Terminals (AREA)
  • Control Of Eletrric Generators (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

A rail for supplying current to mobile electrical appliances, having a current pick-off which can be moved along the rail, consists of a metal profile (1) having an open cross-section and of an essentially U-shaped insulating profile (2) which holds the metal profile (1) and consists of plastic. The metal profile (1) has a sliding surface (4) between the two U-flanges (3) of the insulating profile (2), and a connector connecting surface (6) in a rail longitudinal cavity (5) on the side facing away from the sliding surface (4). According to the invention, the insulating profile (2) which is extruded onto the metal profile (1) is composed of a different plastic (7), especially polyethylene, from the rest of the insulating profile (which consists especially of hard polyvinyl chloride) in the region of the sliding surface (4) and/or of the connector connecting surface (6). The polyethylene strips (7) in the region of the sliding surface (4) and of the connector connecting surface (6) can be relatively easily removed. <IMAGE>

Description

Die Erfindung betrifft eine Stromschiene für die Stromversorgung von beweglichen Stromverbrauchern mit längs der Stromschiene verfahrbarem Stromabnehmer, bestehend aus einem einen offenen Querschnitt aufweisenden Metallprofil und einem das Metallprofil aufnehmenden, im wesentlichen U-förmigen Isolierprofil aus Kunststoff, wobei das Metallprofil zwischen den beiden U-Flanschen des Isolierprofils eine Schleiffläche und auf der der Schleiffläche abgewandten Seite in einem Schienenlängshohlraum eine Verbinderanschlußfläche aufweist. - Offener Querschnitt meint im Rahmen der Erfindung, daß das Metallprofil kein vollständig geschlossenes Hohlprofil darstellt.The invention relates to a busbar for the power supply of movable power consumers with a current collector movable along the busbar, consisting of an open cross-section metal profile and a metal profile receiving, substantially U-shaped insulating profile made of plastic, the metal profile between the two U-flanges of the insulating profile has a grinding surface and, on the side facing away from the grinding surface, has a connector connection surface in a longitudinal rail cavity. - Open cross section means in the context of the invention that the metal profile is not a completely closed hollow profile.

Stromschienen der genannten Art sind aus der Praxis in verschiedenen Ausführungsformen bekannt. Die Verbinderanschlußfläche solcher Stromschienen wird insbesondere an den Enden der Stromschiene zum Anschluß weiterer Stromschienen benötigt und muß folglich zur Herstellung des elektrischen Kontaktes freiliegen. Bei den bekannten Stromschienen der genannten Art wird auch der Schienenlängshohlraum mehr oder weniger vom Metallprofil erfaßt. Jedenfalls wird das Isolierprofil getrennt vom Metallprofil hergestellt, woraufhin das Metallprofil in das Isolierprofil eingeschoben wird. Die Auslegung ist dabei zumeist so getroffen, daß das Metallprofil allein in stabilitätsmäßiger Hinsicht alle Anforderungen erfüllt, während das Isolierprofil praktisch nur isolierendes Hilfsmittel ist. Grundsätzlich besteht natürlich das Bestreben, die Herstellung solcher Stromschienen zu verbilligen. Insoweit kennt man ganz allgemein die Technik, Kunststoffprofile auf Metallprofile aufzuextrudieren. Diese Technik stößt aber im vorliegenden Fall auf Schwierigkeiten, weil im Zuge der Aufextrusion des Isoliermantels die Schleiffläche und die Verbinderanschlußfläche aus technischen Gründen nicht freibleiben können. Tatsächlich schwankt das einen offenen Querschnitt aufweisende Metallprofil in der Dicke. Im Extrusionswerkzeug kann das Metallprofil entweder mit der Schleiffläche oder der Verbinderanschlußfläche an entsprechende Werkzeugflächen angepaßt werden, so daß dort kein Kunststoff hingelangt. Aufgrund der unvermeidbaren Dickenschwankungen im Metallprofil läßt sich jedoch nicht verhindern, daß die jeweils andere Fläche von einer abgedeckten Kunststoffschicht des Isolierprofils bedeckt wird. Das stört natürlich für den späteren Gebrauch, da die entsprechende Fläche freizulegen ist, was aber zumeist erhebliche Schwierigkeiten bereitet.Busbars of the type mentioned are known in practice in various embodiments. The connector connection surface of such busbars is required in particular at the ends of the busbar for connecting further busbars and must consequently be exposed in order to produce the electrical contact. In the known busbars of the type mentioned, the longitudinal rail cavity is more or less covered by the metal profile. In any case, the insulating profile is made separately from the metal profile, whereupon the metal profile is inserted into the insulating profile. The design is usually made so that the metal profile alone meets all requirements in terms of stability, while the insulating profile is practically only an insulating aid. Basically, of course, there is an effort to manufacture such busbars cheapen. In this respect, we are generally familiar with the technology of extruding plastic profiles onto metal profiles. However, this technique encounters difficulties in the present case because, for technical reasons, the grinding surface and the connector connection surface cannot remain free during the extrusion of the insulating jacket. In fact, the metal profile with an open cross section fluctuates in thickness. In the extrusion tool, the metal profile can be adapted to corresponding tool surfaces either with the grinding surface or the connector connection surface, so that no plastic can get there. Due to the unavoidable fluctuations in thickness in the metal profile, however, it cannot be prevented that the other surface is covered by a covered plastic layer of the insulating profile. Of course, this is annoying for later use, since the corresponding area has to be exposed, but this usually causes considerable difficulties.

Der Erfindung liegt die Aufgabe zugrunde, eine Stromschiene der eingangs genannten Art so zu vereinfachen, daß sie billig herstellbar ist, in funktioneller Hinsicht aber keine Probleme bereitet.The invention has for its object to simplify a busbar of the type mentioned so that it is inexpensive to manufacture, but does not cause any problems in functional terms.

Zur Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, daß das auf das Metallprofil aufextrudierte Isolierprofil im Bereich der Schleiffläche und/oder der Verbinderanschlußfläche aus einem anderen Kunststoff als das übrige Isolierprofil besteht.To achieve this object, the invention provides that the insulating profile extruded onto the metal profile in the area of the grinding surface and / or the connector connection surface consists of a different plastic than the rest of the insulating profile.

Die Erfindung geht hierbei von der Erkenntnis aus, daß die Bedeckung der Schleiffläche und/oder der Verbinderanschlußfläche im Zuge der Aufextrusion des Isolierprofils hingenommen werden kann, wenn man mit zwei verschiedenen Kunststoffen arbeitet, die im Zuge der Extrusion untereinander keine besonders feste Verbindung eingehen. Der im Bereich der Schleiffläche bzw. der Verbinderanschlußfläche befindliche andere Kunststoff kann dann bei Verwendung der Stromschiene verhältnismäßig leicht abgezogen bzw. in den Schienenlängshohlraum zurückgeschoben werden.The invention is based on the knowledge that the covering of the grinding surface and / or the connector connection surface is accepted in the course of the extrusion of the insulating profile can be achieved if you work with two different plastics that do not form a particularly strong bond with one another in the course of extrusion. The other plastic located in the area of the grinding surface or the connector connection surface can then be pulled off relatively easily or pushed back into the longitudinal rail cavity when using the busbar.

Für die weitere Ausgestaltung bestehen im Rahmen der Erfindung mehrere Möglichkeiten. So empfiehlt sich eine bevorzugte Ausführungsform, bei der das Metallprofil im Bereich der Schleiffläche und der Verbinderanschlußfläche im wesentlichen eben ausgebildet und mit abgewinkelten Längsrändern im Isolierprofil verankert ist. Vorteilhaft ist hierbei nämlich, daß für das Metallprofil aufgrund der U-Form verhältnismäßig wenig Material benötigt wird. Die erforderliche Stabilität der Stromschiene insgesamt kann ohne weiteres in Kombination mit dem Isolierprofil erreicht werden, zumal Metallprofil und Isolierprofil fest miteinander verbunden sind. Eine besonders geeignete Materialkombination für das Isolierprofil besteht im Bereich der Schleiffläche bzw. der Verbinderanschlußfläche aus Polyäthylen, ansonsten aus Hartpolyvinylchlorid.There are several possibilities for the further configuration within the scope of the invention. A preferred embodiment is recommended in which the metal profile is essentially flat in the area of the grinding surface and the connector connection surface and is anchored in the insulating profile with angled longitudinal edges. The advantage here is that relatively little material is required for the metal profile due to the U-shape. The required stability of the conductor rail as a whole can easily be achieved in combination with the insulating profile, especially since the metal profile and the insulating profile are firmly connected to one another. A particularly suitable material combination for the insulating profile consists of polyethylene in the area of the grinding surface or the connector connection surface, otherwise of hard polyvinyl chloride.

Im folgenden wird die Erfindung anhand einer ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert, deren einzige Figur im Querschnitt eine Stromschiene zeigt.The invention is explained in more detail below with reference to a drawing which represents an exemplary embodiment, the sole figure of which shows a busbar in cross section.

Die in der Figur dargestellte Stromschiene dient der Stromversorgung von beweglichen Stromverbrauchern mit längs der Stromschiene verfahrbarem Stromabnehmer. In ihrem grundsätzlichen Aufbau besteht sie aus einem einen offenen Querschnitt aufweisenden Metallprofil 1 und einem das Metallprofil 1 aufnehmenden, im wesentlichen U-förmigen Isolierprofil 2 aus Kunststoff. Das Metallprofil 1 ist zwischen den beiden U-Flanschen 3 des Isolierprofils 2 mit einer Schleiffläche 4 und auf der der Schleiffläche 4 abgewandten Seite in einem Schienenlängshohlraum 5 mit einer Verbinderanschlußfläche 6 versehen.The busbar shown in the figure is used to supply power to movable power consumers with pantographs that can be moved along the busbar. In its basic structure, it consists of an open cross-section having metal profile 1 and a substantially U-shaped insulating profile 2 made of plastic which accommodates the metal profile 1. The metal profile 1 is provided between the two U-flanges 3 of the insulating profile 2 with a grinding surface 4 and on the side facing away from the grinding surface 4 in a longitudinal rail cavity 5 with a connector connection surface 6.

Wie aus der Figur ohne weiteres ersichtlich, besteht das auf das Metallprofil 1 aufextrudierte Isolierprofil 2 im Bereich der Schleiffläche 4 und im Bereich der Verbinderanschlußfläche 6 aus einem anderen Kunststoff 7 als das übrige Isolierprofil, und zwar besteht das Isolierprofil im Bereich der Schleiffläche 4 bzw. der Verbinderanschlußfläche 6 aus Polyäthylen, ansonsten aber aus Hartpolyvinylchlorid. Die Polyäthylenstreifen 7 können leicht abgezogen bzw. entfernt werden.As is readily apparent from the figure, the insulating profile 2 extruded onto the metal profile 1 in the area of the grinding surface 4 and in the area of the connector connection area 6 consists of a different plastic 7 than the rest of the insulating profile, specifically the insulating profile in the area of the grinding area 4 or the connector pad 6 made of polyethylene, but otherwise made of hard polyvinyl chloride. The polyethylene strips 7 can be easily pulled off or removed.

Das Metallprofil 1 ist mehr oder weniger U-förmig gestaltet, d. h. im Bereich der Schleiffläche 4 und Verbinderanschlußfläche 6 ist das Metallprofil 1 im wesentlichen eben ausgebildet, während es mit zu den freien Enden der U-Flansche 3 des Isolierprofils 2 hin abgewinkelten Längsrändern 8 im Isolierprofil 2 verankert ist.The metal profile 1 is more or less U-shaped, i. H. in the area of the grinding surface 4 and connector connection surface 6, the metal profile 1 is essentially flat, while it is anchored in the insulating profile 2 with longitudinal edges 8 which are angled toward the free ends of the U-flanges 3 of the insulating profile 2.

Claims (3)

  1. A conductor rail for supplying current to mobile current consumers having current collectors which can travel along the conductor rail, consisting of a metal section (1) having an open cross-section and of a substantially U-shaped insulating section (2) made of plastic and receiving the metal section (1), wherein the metal section (1) has a sliding surface (4) between the two U-flanges (3) of the insulating section (2) and has a connector attachment surface (6) in a longitudinal, hollow rail cavity (5) on its side facing away from the sliding surface (4), characterised in that in the region of the sliding surface (4) and/or of the connector attachment surface (6) the insulating section (2), which is extruded on to the metal section (1), consists of a plastic (7) other than that of the remaining insulating section (2).
  2. A conductor rail according to claim 1, characterised in that in the region of the sliding surface (4) and of the connector attachment surface (6) the metal section (1) is of substantially flat construction and is anchored in the insulating section (2) by means of bent longitudinal edges (8).
  3. A conductor rail according to claim 1 or 2, characterised in that in the region of the sliding surface (4) or of the connector attachment surface (6) the insulating section (2) consists of polyethylene or otherwise of hard polyvinyl chloride.
EP91119787A 1991-11-19 1991-11-19 Rail for supplying current to mobile electrical appliances Expired - Lifetime EP0543039B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES91119787T ES2071193T3 (en) 1991-11-19 1991-11-19 POWER OUTLET RAIL FOR THE SUPPLY OF MOBILE POWER CONSUMERS.
EP91119787A EP0543039B1 (en) 1991-11-19 1991-11-19 Rail for supplying current to mobile electrical appliances
DK91119787.9T DK0543039T3 (en) 1991-11-19 1991-11-19 Power rail for power supply of moving power consumers
AT91119787T ATE121575T1 (en) 1991-11-19 1991-11-19 POWER RAIL FOR THE POWER SUPPLY OF MOBILE POWER CONSUMERS.
DE59105279T DE59105279D1 (en) 1991-11-19 1991-11-19 Busbar for the power supply of mobile electricity consumers.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91119787A EP0543039B1 (en) 1991-11-19 1991-11-19 Rail for supplying current to mobile electrical appliances

Publications (2)

Publication Number Publication Date
EP0543039A1 EP0543039A1 (en) 1993-05-26
EP0543039B1 true EP0543039B1 (en) 1995-04-19

Family

ID=8207353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91119787A Expired - Lifetime EP0543039B1 (en) 1991-11-19 1991-11-19 Rail for supplying current to mobile electrical appliances

Country Status (5)

Country Link
EP (1) EP0543039B1 (en)
AT (1) ATE121575T1 (en)
DE (1) DE59105279D1 (en)
DK (1) DK0543039T3 (en)
ES (1) ES2071193T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755513C2 (en) * 1997-12-13 1999-10-14 Fahrleitungsbau Gmbh Expansion connector for successive conductor rails of a conductor rail
DE19833010A1 (en) * 1998-07-23 2000-01-27 Vahle Paul Kg Plastics current take-off line for supplying movable electrical load has hollow spaces provided at rear of pre-profiled current rails used for locating coupling elements between abutting current take-off line sections

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE536049A (en) *
DE3002219A1 (en) * 1980-01-23 1981-07-30 Fahrleitungsbau Gmbh, 4300 Essen CONNECTION BETWEEN AN ELECTRICAL CABLE AND A BUS RAIL FOR MOBILE POWER CONSUMERS

Also Published As

Publication number Publication date
ES2071193T3 (en) 1995-06-16
DE59105279D1 (en) 1995-05-24
DK0543039T3 (en) 1995-07-03
ATE121575T1 (en) 1995-05-15
EP0543039A1 (en) 1993-05-26

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